I actually loled on how much people want worlds to be gone just because of gameplay elements or because there's supposedly no more "content".
For me, I actually judge worlds on how much they do for the main plot, not replaying some stupid disney movie all over again. If I want the plot of the movie I watch the movie.
The worlds doesn't necessarily need to follow a movie plot every time...how about getting a bit creative and actually developing an own storyline for a disney world with involves this worlds characters (i.e. Hercules, Hades and Meg) which somehow intertwines with the overall plots.
Attempts to this were made in KH 2 yet they remained somewhat thin...
For Atlantica, the musical bits really weren't the best shot, there I agree with everyone. Atlantic had some good approaches in KH 1 concerning the overall KH story and mysteries, yet that got really cramped by KH II and seemed disconnected.
The controls in Atlantica were really heavily criticized in KH 1 and for KH 2 they took that into consideration and changed it completely...seems they can never satisfy the majority of players.
Yet still, if they would improve the controls, add a decent plot which actually ties in to the main story I wouldn't mind seeing Atlantica or every other world again for that case.
There's also always space to add some more rooms to explore in a world, i.e. making Agrabah actually feeling like a town, not a village as with the few places we get to visit, open up the palace and give opportunities to meet the guards and the sultan.
In Olympus they could probably combine the already established over- and underworld, plus adding mount olympus and Thebes, making it actually explorable and invent some new twists for the tournaments which don't get annoying over time, like i.e. Sora and co. being able to really set up an own faction/team to enter the games, and adding guest characters to your faction who will fight alongside Sora in tournaments against not only heartless and nobodies but also other factions.
Just for Halloween Town I can't really see much more expansion that can be done...it should probably only used again when providing some overall plot relevance.
As for worlds I really don't want to see...all that Hanna Montana and similar crap should really remain within the DC.
Cars and Wall-E, no, thanks a lot.
Real Final Fantasy worlds were said from the very beginning they would be never be included and I honestly also don't want it.
The FF cameos in KH aren't the real FF characters and already have their home-worlds.
More original worlds are however always welcome...but then please REAL worlds and not just some Data worlds programmed by Ansem the Wise.
