Leave the tropers' names, just unlink them and remove the "Tropers/" namespacing, if you feel you have to do anything about them at all. By which I mean, if you come across something like
just turn it into
if you really feel like you must do something about it.
As for possible confusion, well, most of the time if not almost all of the time, the tropers' names will be in contexts that will make it clear they are tropers' names., If there's anyone on the wiki who'll be confused because he doesn't know we forked from TVT and thus have references like that around, well, we want to know so we can celebrate him, and having him ask about it will point him out to us. <grin>