So, Kingdom Hearts has pretty handily mined the Disney cartoon stuff. There's a few they haven't done - I'd love to see them do something with the cartoon version of Robin Hood (the one with the fox), for instance - but Disney is of course a massive, gigantic group now with much more than those classic cartoons from 30-50 years ago in their stable. The thing about KH is that it seems Disney has restricted the series only to stuff considered 'core' Disney. For a while Pixar wasn't considered this, but it appears it has now been inducted into that, with Pixar and regular Disney characters interacting in things like Disney Infinity. Most people, myself included, consider a couple of Pixar worlds a shoe-in for KH3. But what about beyond that? Disney owns all of Marvel Comics. Disney owns all of LucasFilm - not just Star Wars and Indiana Jones, but also things like Howard the Duck and The Land Before Time. They also own The Muppets Studio. Beyond that, there's a suite of movies and franchises Disney owns the rights to that aren't considered part of the 'core' Disney - but with both Tron and Pirates of the Carribean making the jump to KH, what's to stop things like Mary Poppins, National Treasure (Nic Cage in KH, lol), or something more recent like Oz The Great & Powerful? What from Disney's extended catalogue would you like to see? It probably won't happen, but let's dream.