For the record I agree with Viper. The argument of "audience isn't there" holds about as much weight as "third party games don't sell on Wii" With 50 million consoles sold the audience is diverse enough (and large enough) to support any (quality or not) game developers want to bring to the table.
I think the main factors will be favorable reviews and a good marketing campaign.
Bet between Slimbeast and Arius Dion about Wii sales 2009:
If the Wii sells less than 20 million in 2009 (as defined by VGC sales between week ending 3d Jan 2009 to week ending 4th Jan 2010) Slimebeast wins and get to control Arius Dion's sig for 1 month.
If the Wii sells more than 20 million in 2009 (as defined above) Arius Dion wins and gets to control Slimebeast's sig for 1 month.
