WWE 2K15 will be the second WWE game released by Take-Two. The company purchased the rights from THQ in early 2013. They retained long-time series developer Yukes to handle WWE 2K14. While sales figures weren’t provided for 2K14, the game was apparently successful enough for Take-Two to justify continuing the franchise.
Unlike NBA 2K14, WWE 2K14 was only released on current-gen consoles. It seems likely that the 2K15 will be available on Xbox One and PS4 as well, though.
Both WWE 2K15 and NBA 2K15 will arrive sometime in Take-Two’s 2015 fiscal year, which runs from April 1st, 2014 to March 31st, 2015. Given the history of both franchises, I’d imagine the 2K15 editions will launch in the fall to take advantage of the annual holiday spending spree.