I think it'll sell over 2.5 mil lifetime in the US, a decent chunk of those will come from digital sales because of the bundle. Actually at my EB games there were almost as many people there for ALBW as there were for the Xbox One ( I think there were 18 for LoZ and 26 or 27 for Xbone). I'm from Canada, and right now ALBW is the first game that pops up when I tap the best sellers list, but I don't know if I'm viewing it right (just got my 3DS, still learning to work it).
Predictions! By the end of 2014... PS4: 15 million +, Wii U: 12 million, XOne: 9.5 million!