Re: Why Sleeping Beauty world is important to BBS, and theory on which worlds to excp
Haha, I've been pondering the same theories myself actually. Yesterday I was telling a friend how we may finally get to see Maleficent's backstory.. perhaps her world (and Aurora's of course) will be swallowed by the darkness in game, probably near the end, and she requires a new castle once more. As a result, she continues up until the first Kingdom Hearts game. I can't wait to see how it'll turn out, Sleeping Beauty used to be my favourite film all those years ago ^^ and we have the Prince, the dragon, the thorns, the castles, there's a lot that can be done

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As for Olympus Coliseum, that too should play out well, with a whole backstory available using the film plot. Perhaps new areas, mythological opponents, and the three sisters making an appearance?
Robin Hood and the highly demanded Black Cauldron could appear, purely for new areas to explore, and a change of villains and Heartless. We could also delve into Merlin's past with The Sword in the Stone, and see how he came to develop and become who he is in the first Kingdom Hearts. As for any mini-game worlds, instead of Winnie the Pooh we could have Bambi (DON'T FLAME ME FOR THAT!) and so forth. These are all just alternative ideas, but hey, there's a lot of potential for new storyline and worlds to explore

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For any other worlds, a lot of new films may have to be used to maintain the timeline, but I guess the theory that time flows at different rates in different areas could be used. Nevertheless, that did not seem to be the case for KH2.. So I guess that's pretty non-existant then.
As for the sleeping capsules, time travel seems to be an interesting candidate. If not at least sleeping and reawakening in the "future". Getting back would not be so easy, but it could allow worlds to be accessed which are not so far back. After all, these three Keyblade wielders sure have been around a while if you consider KH2:FM+. That portal in Disney Castle to "Sunset Horizons" could be a time portal.. I doubt it but hmm it's a vague idea of how people could get back to the past.