Anyway, back to the games:
I think the Kirby game is going to surprise a lot of people. My people tell me that it's going to incorporate a lot of the elements from Mario Galaxy, SMBWii, all within the framework of traditional Kirby gameplay. It'll definitely give platformers a run for their money, including (dare I say it?) Mario Galaxy 2.
Metroid Other M will be tricky. I really see Nintendo's efforts be handicapped by the shortcomings of TN. I'd much rather prefer Nintendo handle the game themselves, but I suppose they've got bigger titles to concoct.
Super Monkey Ball is my party game sleeper hit of 2010. I see this game being second behind SMB1 with a better assortment of party games than SMB2. I'll be stunned if it isn't a worldwide million seller.
Project Needlemouse will be huge. You heard it here first. It will end up being the best selling third party platformer this generation.
Epic Mickey will disappoint, I fear. I really haven't seen anything to suggest that it will bring anything new to the genre and the days of successful Disney platformers are behind us, IMO.