I think PS4 could have easily hit 13.5 if not 14M by now, while I think Wii U is at about 7.5M based on Nintendo's recent sales update and XB1 could be about right on VGChartz, so 6.1M.
So 13.5M for PS4 and a joint 13.6M for both Wii U & Xbox One combined, I think it's a given PS4 will hit 50% market share this month or it's already done it.
I think PS4 had sold 12-12.5M by the end of September and I wouldn't be shocked if it's already sold well over a million more since then, even VGChartz own numbers, which usually heavily under-track the PS4's sales put it at 800k being sold from the end of September to the 18th of October.
Safe to say PS4 may have already hit 50% market share by now.
I don't think Xbox One will pass the Wii U in lifetime sales by the end of this year, not with Smash Bros and Amiibo on the horizon.
