A price drop for Wii U is assured, I'm doubtful for One or 4. FFXV may not make 2015.
I think it will be a new high for Wii U with a lower price and lots of games. Kart and Smash carry-over will help early in the year, and then there is a steady stream of releases. I think Splatoon and MarioMaker will be surprise hits while Xenoblade and Zelda will lure a lot of core gamers along with the price cut. I think we'll see about 10 million sold.
One and 4 are a bit tougher to predict just yet. It really depends on if One gains back some momentum in NA this fall. if so, we could see both sharing about 20-25 million in global sales. If 4 dominates then One is done, and 4 will take a commanding market share. The second half sales of 2014 will project into 2015 for these two.
