In that original thread, I said WiiU would pass it during the holiday season and in february at the latest... In my defence, I was new here... And it should've had more games which ended up being delayed or cancelled...
Today I say WiiU will pass it halfway through 2014, in the second half of the year anyway. I just don't see Vita picking up. WiiU should with the big games coming. With a little luck, it'll already come close during this holiday, but realistically the Vita will probably still be comfortably ahead.
And what are people on about the rumoured PS4/Vita bundle saving the system(s)? I don't see that doing anything at all. It will be 500 eurodollars! At least, likely more. Way too much, even if you get two systems. People always look at price first, regardless of content. When they see something gaming-related with a $500 pricetag, they'll move along without taking a second look. Only the ultra-hardcore will buy this, assuming they don't have a Vita already, which is a tiny number.