By the end of the year, yes, I think the Wii U may have overtaken the Xbox One. By the end of October, though? I doubt it. Wii U's biggest heavy-hitter left this year will be Smash, which will be out sometime a bit closer to Xmas.
I think Bayonetta 2 and Hyrule Warriors will definitely sell well, but XO has some strong games out by the end of October, too.