The website has DDR for Wii on Sept 25 in the USA. 

August to December seems likely to include USA:

Dewey's Adventure

DDR

Nights

Soul Calibur Legends

Super Mario Galaxy

Smash Brothers Brawl

Metroid Prime 3

Crystal Chronicles

Battalion Wars

Fire Emblem

GH III

Mario & Sonic at the Olympics

Zack & Wiki

Wii Music

Resident Evil: Umbrella Chronicles

Red Steel 2

Rayman Raving Rabbits 2

No More Heroes

Disaster: Day of Crisis

MySims

Boogie

Should be interesting to see what 'secret' projects will be unveiled by Nintendo and others at E3...but I would say all audiences buying Will will be satisfied at least for the rest of the year come August.

*begins to reply, but has to go find a napkin first to wipe drool from chin.*

That's an insane number of titles.

I count 8 *absolutely will purchase*titles - and 15 titles I would love to purchase/own (includes the 8).

Please for the love of God, DON'T let Red Steel 2 (or Rayman 2) arrive this year (I'll have to ignore both of them...).

Note that this doesn't include Wii Health (Pack).

EDIT - I should note that I still have to purchase these titles:

 - SuperPaperMario
 - RE4
 - MarioParty 8

(and this is Wii only - not even thinking about the DS...) 

Wii Health is listed as TBA 2008 on IGN...

 I've misread but is this list for 2007!!!  Damn got like 6 titels that are must buy titels for me.

To bad Rayman RR2 and red steel 2 if they would see a april release and where any good I would definitely buy one. I olsa find it sttrage that we heard nothing of those titels at the ubi days. Let alone any Wii titel at the ubi day was missing if I recall.

Only 6?!  hehe ...

I want:

Too much to sum up really... Almost all of em! (Around 10-12 or something)

damn, I just counted 12 must-gets for me, lets see how I can get some extra cash, I think I´ll have to sell my blood but thats only 25 euros every 2 months, any other Ideas ???

That's just a ridiculous amount of potentially great games in a 5 month span. I am leaning toward seeing Umbrella Chronicles, Crystal Chronicles, No More Heroes, and Red Steel 2 in 2008 though, maybe Fire Emblem too. Last time I checked, Space Station Tycoon was supposed to come out this year also, which may turn out to be a pretty fun game. I'm still not convinced that Soul Calibur Legends will make it this year(at least in America), but I sure hope it does. :)

Good list.  You missed a several potential interesting games such as
Ghost Squad (ok, they probably will not do as well as most of the ones you listed). I generally am not into sports games, but EA is coming out with several this year that have both advanced (remote + numchuck) and remote only for easy play that I am considering. Sports games are much better multi-player and sounds like they will make the controls easy enough that I can much easier find someone to play with.

I'm with you I counted 12 games that I have to get.