The Wii will not sell more than 100 million. Maybe after its predecessor but not this generation. If the Wii can sell over 65 million units that'll be good enough since the NES (their most sold console WW so far) sold about 60 or so.
Generation 8 Predictions so far.....(as of 9/2013)
Console that will sell most: Nintendo Wii U
Who will sell more consoles between Microsoft/SONY: SONY







