I think a game placed between SS and OoT that details the rise of Ganondorf (and the Gerudo) is a distinct possibility at this point.

I expected SS to be about the origin of the Hyrule we see in OoT. It wasn't, at least not to any significant extent. Now, the potential is still there for another game.

Not necessarily expecting Nintendo to go that route (they're famous for throwing curve balls) but it would be logical. I'm either hoping for this or a game that expands on the Twilight Princess story. So much of that game was left open.