There's not even a chance if you ask me. 100% Wii only.
SS is without a doubt releasing this fall (it's already been delayed, as some speculated it for holiday 2010), already 5 years away from the last Zelda. Wii2 most definitely will not launch until the fall 2012. I don't even think it will be shown at 2011 E3.
If it even sees a release on the Wii2 it will be in the same form as OoT, etc. did on the GC, on a promotional disc of sorts, a good 3 years from now, for the next Zelda.







