Depends on how it sells on the WII. But yeah it's only a few months away and Nintendo has been firm about releasing on the WII so it's coming this year for sure.
Still think they might want to launch an HD version because a big bulk of "hardcore" games have either giving up the WII or never had one to begin with. And it really wouldn't take Big N to long to reamp the game, just look at all the PS2 collections out there--GoW, MGS, Sly Copper, ect where the developers took multiple games to HD within a year's time.
As for Big N fixing your system, if you opened the case I don't think they'll fix if even if you pay them.