Umm cant think of anything other than U draw. And maybe that game Wee Waa (yes u heard here first!! ), might appeal to the younger generation, and from what i've seen it seems fun, they just have to market it right.
But i think the big game this year will be just dance 2, i think it will explode this year, and add to sales of last year, especially since i expect a much bigger launch and a better holiday streak, it seems it will do just that.
But since u mentioned that just dance wont count, i'll go with Wee Waa, i think it has good potential. Here's a link: http://www.youtube.com/gaia_link?action_show_gaia_interstitial_link=1&feature=flinkla&next=http://www.youtube.com/watch?v=Kp6jVGgPbMo
Edit: I'll add sonic colors. I expect big sales for it. not the usual 1-1.5 million