from what i'm guessing, a lot of the old worlds will be following their original plot lines instead of simply existing until three bombs called Sora, Donald, and Goofy dropped from that big bomber, the gummi ship. so all i can REALLY say in this thread is that the trio's gotta save Santa, Christmas, and Halloween while stopping Jack from going nuts and Oogie Boogie from...being his natural self, whatever it may be *squishes bugs*
hm...if those evil toys become Heartless, imagine how many homes they can infiltrate and how many hearts they can steal....what if that's the challenge in that world? destroy the heartless before some meter fills up with stolen hearts?