Apparently Disney has a lot of faith in Epic Mickey's sales potential. While I'm sure they're not banking on the game selling this much, it is a change a pace to see a third party publisher have this much faith in their Wii titles, presumably backing it up with a huge amount of support as well.
Source:
http://www.gamasutra.com/view/news/27301/Interview_Disneys_Hopper_On_Nintendo_Withholding_Mickey.php
Considering that Epic Mickey is a 3D platformer, I assume the games they're referring to are things like the 7-9 million selling titles like 3D Marios and Zelda as opposed to the 15-20 million selling things like Mario Kart and Wii Fit.
So, I was curious, do people think it's reasonable that Epic Mickey could sell something like 7-9 million copies, and if not, what do people think Epic Mickey's sales potential is?