Wii will not expand the industry that much.
Wii:90-120million If it keeps selling like it is.
PS3:75-100milion Some really great games coming up.
X360:35-50million Got nothin' after the end of 07.
If the Wii goes the way of the Gamecube and suddenly stops selling(highly unlikely).
PS3:90-100million
Wii:60-90million
X360:35-50million
End of 2014 Hardware Predictions (03/03/14)
PlayStation 4: 12-15million
Xbox One: 7-10 million
Wii U: 8-9 million (Changed 01/04/2014 from 7-9 --> 8-9 million)