...I'm somewhat inclined to think this is a troll thread, but I'll take it seriously to be safe.
Correct me if I'm wrong, but didn't the Wii U sell 3 million units in 2013? When there was almost no software to be found on the system whatsoever?
Wii U only selling 3 million in 2015, when Smash Bros and Mario Kart are out, and Legend of Zelda will (admittedly this is unsure) probably be releasing, along with some notable boosts along the way in the form of Splatoon, Mario Maker, Mario Party 10, and X, seems more than a little bit pessimistic to me.
On the other hand, expecting 7 million X-Box units between now and years end seems INCREDIBLY optimistic, especially with no major exclusives launching between now and years end outside of MCC, which, while will certainly be a positive impact, is in the end all old games and will probably at best simply nullify the positive effect of Smash Bros.









