OK, I faced it: WiiU can't sell over 15M

[ExplodingBlock]

Manlytears said:
WiiU will hit 15M, i dare say, it will cross the 20M, the thing is... it's a poor mark, WiiU is posed to make 15M and 20M, but most likely will not cross 25M.

Agreed, people thinking it can pass 25m are being very optimistic, 20m is a reasonable prediction for Wii U.