I don't think it'll happen this year, whatever the case. Unless there's a big XO game I don't know about, but I was under the impression that CoD was their last semi-big title for the year while Wii U still has Smash (and maybe Captain Toad in certain regions, though I'm expecting that to sell more to existing owners). There's also the whole Amiibo thing. I honestly have no idea how that's going to turn out.
As for next year... not sure. It really depends on marketing and a couple of key games. Microsoft have done a pretty good job of turning the perception of their console around, while Nintendo still have some work to do.