From 2Ks site :
"Sting will be featured in WWE 2K15 through two unique playable characters: the baseball bat-wielding icon of the nWo-era with trademark black and white face paint, as well as the flashy, brightly colored Sting with his signature flattop hairstyle. We're honored to welcome Sting into the WWE Universe through WWE 2K15 and we'll have more to share with you in the weeks and months ahead."
Also a picture of both that will be in the game on their site. Tapatalk acting weird and won't let me post picture