From Nintendo Power:

[quote]New TMNT Wii game - more details
December 10th, 2008

-published by Ubisoft
-official development started Jan. 2008
-concept started Oct. 2007
-to be released in Sept. 2009
-2.5D Fighter
-Interactive Stages
-4 player versus
-Story Mode
-Battle Royal
-Tournament
-Winner Stays
-Loser Stays
-Practice
-Unlockable Characters
-Unlockable Stages
-Online aspects said to be better than Brawl implementation
-Each character is color coded with glowing effect to make 4-player battles easy to follow

“While this is a licensed game, it’s not tied to any movie or TV show…for this game to succeed on its own it needs to be a great game.â€

Throwback to the arcade game? Sounds good to me!

Sounds good to... well, me too.
Now, will it look good too?

Wait, a TMNT game like those old arcade games? Count me in!

But no 4 player story mode? And even if it was... I bet it wouldn't be online co-op. I think if you really want this, you can get the Acrade remake on XBLA.

TMNT fighting game? Great!

I still remember Tournament Fighter for the SNES, that was an awesome game. =]