I think Platformers have a shot, although they have only been declining since the N64 days.
One thing is clear: Now that Nintendo is dominating again, it must be a "Nintendo-Genre". Typical Sony/Microsoft genre's like Shooters, Racers and also SciFi-RPG's probably won't have a shot. Since Nintendo's success is largely due to casual gamers, more complicated genre's like Action-Adventures are also unlikely.
Platformers are simpler than those genres but can still be considered core enough to be interesting for true gamers. The new-found casuals on the other hand might want to try classics like Mario platformers, and Nintendo seems to focus more on the genre again (Super Paper Mario, Wario Land on Wii or Kirby, Yoshi's Island on the DS).







