Wii looks all good for now, but I don't think it'll quite reach 100 million. Maybe more like 60-80 million because I strongly believe its appeal will slowly start fading out while PS3's appeal will grow stronger as time moves forward to the future.
My predictions are like this, for end of lifetime sales:
PS3 - just under or just over 100 million (keep in mind all the PS2 users out there still)
Wii - 60-80 million
360 - 50-60 million
End of Year predictions:
Wii | 17.5 million ----> 19.20 million as of new year
X360 | 16 million ----> 16.02 million as of new year
PS3 | 8.7 million -----> 8.86 million as of new year
DAMNN I really underestimated the freaking Wii - Sheaaat!
Lifetime Sales
Wii | 60-80 million
X360 | 50-60 million
PS3 | 100+ million (I believe the PS3 will still be around when other NEW consoles arrive...there won't be a PS4 for quite some time.)
