Article Forbes "The PS4 and Xbox One are Already Out of Date http://www.forbes.com/sites/johnarcher/2014/09/12/the-ps4-and-xbox-one-are-already-out-of-date/ " and that's one of the reasons why I think Microsoft would have few qualms about bringing out a new console by late 2015 if Xbox One is still being crushed by its third holiday season in a PS2 to Original Xbox way by PS4 if Microsoft intends for their Xbox brand to stay relevant in gaming.
Of course the Wii U is even more obsolete than X1.