I source the list that was posted by GoNintendo here
http://gonintendo.com/?p=23050
Looking through it there are two things that stand out for me, Samba De Amigo (my favourite dance and rhythm game EVER). If it just an exact port of the under-appreciated DC game with the same song list then I am in heaven, I absolutely love this game, now THAT is how a dancing game should be done. Hopefully you can use two wii remotes instead of Wii Remote and Nunchuk because the cord isn't long enough IMO.
The second is a much bigger effector of sales... Zack and Wiki looks to be budget priced, if that is the case, then bring on the sales for this game. It already looks fantastic and is receiving a lot of attention on the net so far, I don't know how that will transpose into sales directly but I don't expect it to sell poorly if it has a budget price... i expect big things now actually. It will certainly be a 'legs' game so if it does well or not should not be judged on the first week of sales.