Nintendo editor Matt Casamassina has hinted at some additional third party support for Wii. On IGN´s Wii-k in Review, dated last Friday, he pours some water on the rumour mill.
We were talking to some publishers today during lunch. And they were saying, you know, we have got some really original new IPs for Wii that we cannot talk about. But we are definitely pushing Wii. We are really into Wii. (...)
There used to be this fighting franchise, it came to GameCube. It will be coming to Wii but it won´t be a fighting game anymore. Now it is going to be some kind of crazy-ass adventure game.
The quotes are at 21:55 and 29:55 into the podcast, respectively. The fighting game mentioned in the latter is also said to have been a third party title and reasonably successful on the platform. Guesses may include ´Viewtiful Joe´, ´Soul Calibur´ and, my personal favourite, ´Bloody Roar: Primal Fury´.
EDIT In, fact, I can add a little rumour myself. Expect Rockstar´s ´Table Tennis´ to come out on the Wii. I have been told that it is likely to be the second Rockstar title (after ´Manhunt 2´) heading to Wii.
EDIT Corrected the above. I forgot about ´Manhunt 2´, sorry for the confusion.
EDIT It seems that Matt was referring to ´Soul Calibur´. 1UP has blown the lid off the Wii exclusive ´Soul Calibur Legends´, a third person action adventure.