Winx Club/WMG

The show derived from a Jem fanfiction gone wrong

 * In the episode where Stella and Bloom went to a magic boutique, where they magically try on a shitload of clothes, at one point when they were in rocker costumes, Stella had light pink hair, and Bloom had reddish hair, like Jem and Kimber, hinting that they may have been based on them, or at least the creators are aware of Jem.
 * The other girls resemble the Holograms. Flora is a bit like Raya (sweet Hispanic girl, has a pink motif, has a flower motif), Musa is like Aja (both are blue-haired Asians, both are the tomboys of the group, both are in love with a tough boy), and Aisha is like Shana (both are painfully shy black girls, both end up with the first black man to appear in the show). I am even going to suggest Tecna is based off of Synergy. At one point in production, Tecna was an android...
 * Now, the Trix have a bit in common with the Misfits, if Pizzazz was thrown out of the group. Stormy is a bit like Stormer (the names and both are nicer than the others). Icy resembles Roxy, and Darcy resembles Jetta. Lucy resembles Pizzazz, and behaves like Clash when she appears in the comics.
 * Interestingly, Stormer has Shana's hairstyle...
 * If you like, Valtor acts like Eric Raymond, and resembles Riot. YMMV.

Lucy's power source is light
On Winx Club, character's names are (normally) related to their powers. So, it would make sense if Lucy had light related powers. However, this power source likely would not be considered very witchy in the Winx Club Canon.
 * Or perhaps it's a fallen-angel-esque power of sorts.
 * It would make sense if she had light-based powers, since it would only add to her "loser status" at Cloud Tower. Considering how Mirta's theme is pumpkins, and she was even teased about it, Lucy having light powers would count as Good Powers, Bad People, if not What Kind Of Lame Power Is Light, Anyway?

Lucy really is from Popularia, and really is skilled at hair dancing.
It's just that, unlike other girls from that realm, she's not pretty and has "witch" powers. That made her an outcast. Thus, her desperate loneliness.

It is possible to be a fairy and a witch at the same time
We see several background characters in both Cloud Tower and Alfea. These girls probably come from families with both fairies and witches, and study in both schools (perhaps Alfea during the day and Cloud Tower at night) These girls would have very little free time, since they study in both schools.
 * Possibly Jossed? We now know of the existence of  which seem to be an amalgamation of the above.
 * Actually it's just laziness on the Animator's part. If you look well (sort off) you see that one of Mitzi's friends does attend Cloudtower and even participates in the attack on Alfea in the Third Season.
 * Fairies are born fairies. I don't like the idea of witches becoming fairies. However, being a witch means following a certain belief and lifestyle, therefore, a fairy could also be a witch if she wishes to subscribe to the witches' lifestyle.

The Trix were somehow mindwiped, brainwashed, or even lobotomized at Lighthaven.
In the first season, the Trix are Badass. But from the end of season one onward, they're almost reduced to joke villains and minions. Their strategic abilities also seemed to suffer a bit. Perhaps something happened to them at Lighthaven--a mindwipe? Deep, Clockwork-Orange-styled brainwashing? Lobotomy?
 * I think they suffered it, but it wasn't intentional: Lighthaven was supposed to bring out the good in them with overexposition to cuteness, but the Trix really hated cute things. The result? They're permanently too furious to think straight and fully use their powers. Also, look at their reaction at the guardians of Lighthaven coming to take them back at the end of season 3: where they usually fight even when hopeless, Stormy did absolutely nothing, and Icy and Darcy actually begged for anything else but CUTE THINGS.
 * According to Sucker Punch a lobotomy is a process that turns people into vegetables{alive but can't actively think.}

Every new form the girls get that makes them become more and more like "True Fairies" is sweeping away their humanity, and this is compounded by the He Who Fights Monsters problem
Self explanatory.

Their big goal is to become "real fairies." Nobody stops to think what's going to happen to them after that. Becoming a fairy means casting aside humanity; choosing to do it means being a human isn't good enough. Before you know it, they're going to be invoking Can't Argue with Elves and declaring themselves deities, and they will become Designated Heroes as they start to Kick the Dog.

It doesn't help that Bloom has, at least in the original Italian, revived the dead.

Nor does it help that there is now even another super upgrade from their Believix forms! The designs get even fancier.

Hopefully they'll notice this and use it as an arc plot. Perhaps Stormy or one of the witches can spot them doing something so evil, even they're disgusted and try to stop them before the power goes to their heads. I'd love to see what they can do with that.

There will be a time-traveling fairy and a really, really short-haired fairy
If the show gets a new season, that is. The way they were taking Sailor Moon's pattern indicates such:
 * Sailor Moon - Bloom (main character, The Chosen One, princess of some dead planet, both like bunnies)
 * Sailor Mercury - Tecna (Mercury is the only one that uses sailor-esque technology, and both have short hair of an unnatural color)
 * Sailor Mars - Musa (since Bloom already had the fire-like powers, she's got Sailor Mars's personality, singing ability, & family situation)
 * Sailor Jupiter - Flora (flower-controlling powers, both are the Team Mom)
 * Sailor Venus - Stella (completely about personality, and appearance, and signature colors, and powers, and status, and the fact she is the first fairy/scout introduced, and is mistaken for having the heroine's power)
 * Sailor Neptune - Layla (only by powers and hair, though; neither like men at first, but Layla gets fixed...)
 * She can also be Pluto. They are both the Sixth member, the darkest skinned, have lonlieness issues, and Aisha's relationship with the pixies resembles Pluto's relationship with Rini.
 * Sailor Uranus - ??? (she'd be the short-haired tomboy whose hair didn't grow even in Enchantix form, and she will use earth/air powers)
 * Minor character Priscilla has short hair, tomboyish clothing, and air-based powers.
 * Sailor Pluto - ??? (She'd have slight time-travelling and reality-warping powers)
 * There is a minor chacter named Luna with green hair, it could be her.
 * Sailor Saturn - Mirta (although she isn't much of an official Winx, it's more about being the bullied girl)

One might wonder who are going to be the two missing fairies-to-be. And we'll hope that Winx Club won't have a Chibi... Bloom? (Bloom's little sister or niece could easily sign up. Or one of her descendants can after the time traveler does.)
 * We have Diaspro, Chimera, Roxy, and many other background fairies. Maybe one or two of them secretly qualify.
 * Roxy can be a stand-in for Luna when she assumed her human form.
 * I think Roxy is meant to me a stand-in for Rini. Both have pink hair despie having a blonde and a brunnette parent, are the long-lost princess of the Earth, have similar backstories to their respective heroines, and use heart-based magic.

Roxy will not get a love interest in season 5.
She will be too busy learning about magic at Alfea and helping the Winx Club find a way  Maybe she'll get a love interest if there's a season 6.

Artu has a secret.
He seems to be smarter than regular dogs, and it seems like he may have an ability to sense magical creatures. My guess is that he either has a magical power like Kiko, or that he is somehow related to King Arthur.
 * You do realize Arthur was a human, right

Roxy is a distant relative of Sailor Moon.
That's why she has pink hair while her father has brown hair and her mother has black hair.

The reason Nabu was absent for most of the first movie?
There are a few possible explaintions:
 * He was working on improving his magic skills and learning some new spells so that he could be more useful in season 4.
 * Or his parents may have grounded him for running away from home in season 3.
 * Or he went off on a different adventure during that time which he told his friends all about off-screen.

Everything that has happened on the show so far is The Plan of an unknown enemy.
And from the looks of it, it is a very complex one, possibly a Gambit Roulette. Most notably, this unknown enemy is responsible for helping the Trix escape from the Realix realm at the end of season 2, and left them to be captured so they would be brought to the Omega dimension where they would set Valtor free and start up the plot of season 3.

Nabu was killed off as part of a Batman Gambit by the producers of the show.
Makes perfect sense, doesn't it? The writers wanted to make sure that the fans would watch the upcoming fifth season, and until the events of season 4, Nabu was one of the least popular characters. So, they decided to kill two birds with one stone, and had Nabu make his Heroic Sacrifice near the end of season 4.

Their plan seems to have been successful, as now there is a lot of Winx fans who want Nabu to come back, and they will likely watch the fifth season to see if he really does return or not.

Pixies age a lot slower than other magical beings.
Well, the pixies have been on the show for at least three in-show years, and Piff is still a baby.

If Roxy gets a love interest, his name will not be revealed right away.
Not his real one anyways. Why do I say this? Well, Roxy is the princess of the Earth fairies, and the other three princesses didn't learn their love interests real name right away. Sky and Brandon had switched names in the first season, and in season three, Nabu lied about his name when he and Layla first met.

Those purple markings on Nabu's forearms are connected to his magical powers somehow.
They never explained what those purple marks are supposed to be. If you pay attention in season 4, you can see that those markings aren't visible when he's in one of his civilian outfits. (In the other two civilian outfits he's seen in, the sleeves on his shirt are longer and cover up that part of his arm, making it impossible to tell if those purple marks are there or not.)

The Charmix disappears after a certain amount of uses.
That would explain why the Winx never used it in season 3, they had already used it's power up.
 * This is also supported by something Tecna and Musa say in episode 26 of Season 2.

The Winx can now freely switch between their Enchantix and Believix forms.
I came up with this theory simply because I refuse to believe that the Enchantix forms are gone for good.

The second movie will be in a different continuity from the main series.
The fact that Nabu will apparently be in it supports this theory...

Likely, after the ending of the first movie, it branches off into two different continuities, season 4 and the second movie.

Tecna cast the Sphere of Truth wrong
It's a theory among those those refuse to believe that the change from Plasma Sphere to the Sphere of Truth created a Dub Induced Plot Hole.

Mitzi and her friends didn't lose their powers
As soon as Mitzi is angered that the Winx destroyed her car, she accidentally makes an energy blast. This leads her to realize that her powers aren't lost and check out Darma and Sally with these results.

The Winx-unverse is the Anti-nWoD
Just compare "Winx Club" and 'Changeling: The Lost from the New World of Darkness'':

nWoD: dark, sinister, most of the times at least one dead person scene per gaming session (no matter if it`s a PC or a named or unnamed NPC) Winx Club: nice, cute, kid friendly, exactly one death in 4 seasons

nWoD: In a nut shell the changelings try to obtain/get back their humanity, and even hate, that they not as the "normal" people anymore.If they lose humanity this has serious impact on their sanity. Winx Club: The fairies like to be what they are and actually try to become more magic, because this grants them extra powers without having negative side effects. (Which is a point on its own, because in the nWoD the whole concept of the changelings is that there are no advantages without disadvanteges) (see also the above WMG about the Winx loosing their humanity)

nWoD: The supernatural beings try to obtain the status, the vampires call "Masquerade", which means that humans must not know about the existence of them, because this would more than likely cause a new witch-hunt. also humans don`t believe in magic and this can even cause a mage`s magic to fail Winx Club: The Winx spend the entire last season actively breaking the Maskerade, and are (imho far to easily) believed.This only grants them new powers (again) and even if in the beginning not all humans trust them completely there are no negative side effects (again).

the next one is a bit more speculative: nWoD: The changelings were kept as slaves by the true faes, whith level 0 on the Sanity Meter, before they could escape. So of course their opinion of their "keepers" isn`t exactly the best.

Winx Club: One could argue that Faraginda holds the position of the girls`keeper. At least of Bloom. She is a rational womanwho is highly appreciated by the girls and freely lets them go to earth

If you think a bit about it you could find easily much more parallels on your own, but these should suffice... The Winx Club universe is the Anti-nWoD

Bloom's kiss of life could only be used once.
Which is probably why Bloom didn't use it on Nabu, since she used it on Sky the previous season.

Alternately, the kiss could only be used on someone close to Bloom, like her boyfriend, or a family member.


 * Debatable... It is heavily implied that the hit Riven took for Musa at the end of the Second Season was a killing one. She saved him and you can't really call them 'close'.
 * Hmm. I'm not so sure about that. They may not exactly be as close as the other couples, but I believe they do share a form of closeness. It's just their stubbornness keeps it from being obvious.

Alfea has a Fantastic Racism against witches
Griffin started up that school at Cloud Tower because she was the resident troublemaker at Alfea. Whether or not she "was" a fairy at the time (if she was ever one at all) is never stated. And really, why would a fairy start a school for witches? Maybe she was bullied or ostracized because she was different from the other students, and this caused her to make Cloud Tower at enmities with Alfea. If the world of Winx Club has a Witch Species, this would be the logical conclusion to why witches are "evil" and fairies are "good".
 * Also (same troper), that might explain why Mirta "converted" to fairyhood after transferring from Cloud Tower.

Mirta is still a witch
I think there's a sort of "illusionary magic," that give her the appearance of a fairy, since Mirta has been known to use illusion-based powers before. This is so the other students will accept her, and so no one has to be told that she is "good" despite being a witch.

The world of Winx Club takes place in the same universe as (or as an Alternate Universe to) Soul Eater
We have a Wizarding School, a Witch Species that is, apparently, Exclusively Evil,, and magic skirts! It's just a theory, but it could also be like the Alternate Universe because in Soul Eater, Dark Is Not Evil, and the witches in that series are actually effective compared to Winx Club. Also, Winx Club is pretty Shojo-y, while Soul Eater is a Shonen series. That being said, I think Mirta is a sort of Alternate Universe version of.

Nebula is a Death Seeker.
Has been ever since she's trapped in the White Circle. She possessed Roxy and gets Morgana to turn against humanity to accomplish her goal, but nothing. In season 4 episode 26, she eventually gets her wish intending to take the fairy hunters with her until Bloom talks her out of it.

Flora's little sister is adopted.
Flora has a tan skin tone and honey brown hair while Miele has a fair skin tone and red hair. She's also obviously a lot younger than Flora (Flora is 18 and Miele looks about 6) and if Flora's home realm is what it seems like (a peaceful, old-fashioned society), it's unlikely that one of their parents was unfaithful.

The Trix could have reformed if the guards from Lightrock let them free.
They had begged for anything but the overexposition to cuteness Lightrock inmates are forced to endure. If the guards had asked them to become good persons and Bloom's bodyguards, they would have done it out of sheer terror of being brought back there...

ALL the fairies are fallen.
Think about it: all the fairies are destined to be just a myth or fairy tales for humans. If the Winx are fallen fairies, they were destined to be forgotten by their loved ones.