Back in August, Disney polled users regarding a hypothetical Epic Mickey 2, which would be released for the Xbox 360 and PlayStation 3 in addition to the Wii. The poll strongly hinted at multiplayer co-op as well.
A Disney online newsletter which was subsequently pulled seems to solidify the existence of the game, as well as give it a release window: Fall 2012.
The newsletter had read before being taken down, ”Disney Epic Mickey 2 is the latest game in the critically acclaimed Disney Epic Mickey videogame series. In this all-new action-platforming game available for Xbox 360, PlayStation 3, and Wii, Mickey embarks on an epic journey and is pulled back into a world filled with Disney’s forgotten characters. Players can choose to play single-player as Mickey or for the first time players can also choose 2-player split screen mode. In the 2 player mode one person can play as Mickey wielding magic paint and paint thinner to dynamically change the world and the second player can play as Oswald the Lucky Rabbit – Walt Disney’s first cartoon star – with the power to fly like a helicopter and use electricity to fight or friend enemies and solve challenges. Team-up and choose your path to save this forgotten world because the choices you make will alter the story and change the end of the game!”
Epic Mickey was released exclusively for the Wii, and developed by Warren Spector, but seriously undersold, which may be the chief reason that the sequel will be multiplatform.