I would like to see release dates for Galaxy 2 and Zelda Wii (both 2010).
I would like to learn more about Other M-- I love every Metroid game I have ever played, but I can't seem to get excited about this one (I don't particularly care about Samus herself, she is just my avatar to the game world).
Announce Pikmin 3, a Star Fox game like Starfox 64. I also want to see some WM+ games-- at least one of them releasing this year.
A 'new' line of games set in 2-D like NSMBWii: New Zelda and a New Metroid would headline that series.
I would also like to see a sequel to Kirby's Canvas Curse on the DS (I think that was the best Kirby game ever).
However, I'm sure that I am completely off and that Nintendo will offer us some nice surprises.