http://www.amazon.com/gp/bestsellers/2015/videogames/ref=zg_bs_tab_t_bsar#1
Fallout 4 ahead of Call of Duty and Halo. In-fucking-credible. Best selling next-gen game of the year, in ONE day.
Skyrim all over again, 12 million +
1.2 million on STEAM in a day. imagine after a week?
Console numbers should be very good as well. Then you have Steam sales, regular sales, GOTY editions. 10+ million is very attainable.