The latest Kingdom Hearts 3D: Dream Drop Distance trailer reveals quite a bit of new information, including Sora and Riku being able to visit new Disney worlds such as The Hunchback of Notre Dame, TRON: Legacy, and The Three Musketeers. Some characters from The World Ends With You cast are present and they appear to be quite involved with the story.
Also of note are some colorful, Heartless-like animals standing in for Donald and Goofy to help out during battle. Sora and Riku will need all the help they can get since Birth by Sleep antagonist Master Xehanort and someone resembling a young Ansem make an appearance.
Kingdom Hearts 3D: Dream Drop Distance will be released in 2012 for Nintendo 3DS.