It does look like it'll be quite soon that Wii is down YoY again on a weekly basis. Japan is keeping Wii up while the West is pulling it down.
Our only hope for Q1 being strong I think is an unexpected one... Just Dance. If the excitement over Just Dance transfers into excitement for the Wii itself, maybe Q1 won't be too bad. Zangeki no REGINLEIV might help in Japan too.
Q2 will be an easier comparison with 2009, but for it to be really strong one of the potentials will have to really break out, Red Steel 2 or Monster Hunter or one of the Nintendo games if any are out by then, none of which are very likely though.
A game I'm developing with some friends:
www.xnagg.com/zombieasteroids/publish.htm
It is largely a technical exercise but feedback is appreciated.