Mickey is getting a dark change. There was a thread a bit ago with vague concept art but I forget what it was called.
Thats the only image I can find online. The magazine has tons of pictures!
My game informer did a big spread on it. It's a world that a long long time ago when mickey was all young and foolish and kinda bad from the late 20's cartoon, he spilled paint and thinner on a world Yensid had made. Forgetting about it for years he was in the tower and he got pulled through a mirror where is long forgotten brother, Oswald the Lucky Bunny, was battling to fix the corrupted world. It looks really dark and you get to paint your way through the world! Well or use thinner to destroy it. I guess depending on what you do, mickey changes his appearance. If you destroy lots of stuff mickey get's more rat like. If you paint and create things he gets more upright and golden hands and such.
Its like Tim Burton and Walt Disney had a baby and it's one weird child. It will be a wii exclusive.
EDIT: Found a video on the game informer site of the art. :P