Couple of things:
- More forgotten characters (Darkwing duck FTW!)
- More elaborate disney locations to explore (I didn't like certain towns in KH2 that were just moving between 2 or 3 places)
- Pixar! which would hopefully mean a HD console gets this game
- More explanation about Kingdom Hearts. One thing that annoyed me about KH2 was that rather then explain further the mythos of the world and Kingdom Hearts itself, they just added more confusing elements (organisation XIII).
- If they are going to introduce a crap load of new characters, at least give them decent backstories so we care about them. Outside of Roxas, Xenmas, Axel and Marluxia, did anyone really care about/take notice of the others?
- Less emphasis on reaction commands and button mashing, instead actually forcing the player to use magic/summons in order to defeat bosses.
- Less fanservice that made no sense to KH (i.e dual keyblade wielding... the freakin keyblade is supposed to be the generic blade that changes form when a new keychain is attached to it, it's as if they completely forgot that in the second game)
