Soundwave on 04 July 2013
I think Wii U will sell a little less the the GameCube in fall 2002 when it had Mario Sunshine, Animal Crossing, Star Fox Adventures, Metroid Prime, and Resident Evil 0 and was $149.99.
IIRC the GCN sold about approximately 480k consoles in November 2002 and about 650k in December.
I would guess probably 1 million for the Wii U in NPD with November + December combined. If it's below that, then Nintendo has a big problem.
