So not that much longer till Xbone passes Wii U, and takes away one of Nintendo's last talking points that tries to give their failed console relevance. "It hasn't failed, Wii U is in second place!!". I hope this humbling teaches Nintendo a lesson that helps them return to the glory days of the NES and SNES. I miss that Nintendo.
What makes you think that? The gap has been slowly widening since MK8 came out, and before that (outside of November/December) it wasn't closing very quickly. If the Xbone passes the Wii U, it's going to take a while.