Production Foreshadowing

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"Hey, look, I found Nemo!"

When something said or appearing in a work foreshadows another work that would be produced by the same people much later.

If this happens in the same continuity as the work they appeared in, it's an Early-Bird Cameo. If it's not, but the work they originally appeared in has already been made (but you haven't seen it since it hasn't been localized), then Marth Debuted in Smash Bros.

When this happens the other way around, it's a Production Throwback.

Examples of Production Foreshadowing include: