If it's character designs, I hope Nomura doesn't do anything drastic. After all, we've already had one outfit change, and it only appeared truly in one game (the opening in days, the secret ending in BBS, and Final Mix don't count) and I already got used to it. Character designs hopefully won't take up too much time.
I'd like to see these worlds in:
Jungle Book
Toy Story
Monsters Inc
Dumbo
Bambi
Robin Hood
Bug's Life
The Incredibles
Pocahontas would be an interesting case
Hunchback of Notre Dame
The Sword in the Stone
Worlds that wouldn't work so well:
Cars (Sora Car?)
Aristocats (This one might sort of work, but how will he fit into the story?)
Brother Bear (See above)
Lady and the Tramp (See above)
Emperor's New Groove (They could pull a no partner move, but still)
Chip and Dale Rescue Rangers (Where would Chip and Dale be?)
I ACTUALLY LIKE THOSE MOVIES AND THE TV SHOW, BY THE WAY.
Worlds that would be cool to be in but sadly probably won't be in:
Atlantis
Treasure Planet
Any Console Exclusive World
Summons:
Wall-E
Darkwing Duck (Get Dangerous)
Mr. Toad
I can't think of any more, honestly. I haven't played Final Fantasy either, so I have no ideas.
I say that it's nice that it ties everything together, at least. Heck, I'm just glad that KHIII won't be the last game, just the end of the Xehanort Saga.
If this has already been posted, then I don't care. I haven't seen it here before.
Seeing how Sora was in a capsule during the events of 358/2 days, would his mind state have been still stuck as a 14 year old had Roxas, the more mature side of Sora, not merged with him? After all, he probably was hardly thinking in the capsule, so his mind couldn't grow to a 15 year old mind.