Wii will still get support in 2012, 2013 - it probably won't look much different than DS in 2010-2011 in those years. I do think 2011 is the last big year for relevant core support, but the dancing games, movie games, fitness games, and so on will keep Wii going into 2012 and beyond at a pretty high level of performance.
From Nintendo the following are still likely / confirmed:
Rhythm Heaven, Zelda, Wii Play: Motion, Kirby.
Possibly: Pikmin 3, Wii Relax (there was some rumor about a light device recently for Wii)
Might go West: Pandora, Xenoblade, Last Story
It would still make sense for them to do a bunch of other stuff too that would sell well to the base but not require their top-level development teams - Mario Party, DKC Returns 2, NSMB Wii 2 but we'll have to see.
Third Parties:
Dragon Quest X, Inazuma Eleven, Mario & Sonic, Just Dance 3.
Those are all fairly big games and we'll certainly get more announced later in the year.
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu
