Wii Fit could be able to do it. I still doubt the first week success everyone seems to want, but over time it will sell a lot. First week - not that great. Do you know how big first week you're talking about?
SMG made 1.1M first week, and that had an about as big first week in Japan. That counts for it making it, but something tells me it won't. I have no numbers for that, sorry!
Other than that, not a lot. As far as I know, Gamecube only had 1 single 1st week millionare, in SSBM that is.
The Wii already has 3, and that is in 3 of their 5 biggest franchises, and 1 of them is dead. Zelda Wii could make it, and perhaps a real DK platformer. Or a pokemon game.
Honestly, I believe Wii won't see more than 6 during its entire LT, but once again, just a nonnie.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS
