Dinosaur - 2000 - Not familiar with the title
The Emperor's New Groove - 2000 - Seems unlikely
Atlantis: The Lost Empire - Possibly, although I'm not sure how it could be implemented
Lilo and Stitch (Hawaii Islands haven't appeared yet) - 2002 - Possibly
Treasure Planet - 2002 - Could happen, I could see them making the space port or Treasure Planet itself the main areas
Brother Bear - 2003 - "as much as I love this movie I don't think it would ever end up in a kingdom hearts game" Agreed
Home on the Range - 2004 - that's a funny joke
Chronicles of Narnia: The lion, the witch and the Wardrobe - 2005 - Seems unlikely, as Fox has owned the rights to all the movies after the first
Chicken Little's world - I'm not a huge proponent
Enchanted -2007 -
Princess and the Frog - 2009 - probably not, seems like it would be too complicated to make a world out of
Tangled - 2010 - maybe, although I don't remember much of the movie.
Alice in Wonderland 2010 - Could be, a nice new coat of paint could make the otherwise overused Wonderland world more interesting
Wreck it Ralph - 2012 - Maybe, although it would probably only take place in Sugar Rush
Frozen - 2013 this year - Seems possible, and could appease fans wanting the winter world of Narnia. The world itself has enough landmarks to explore as well. I could picture the snowman being an ally, and the slow-golem a possible boss. It's recent now but we still have a while before the game releases, who knows.