Season Pass holders get it automatically.
2K Sports has made the NXT Generation DLC pack for WWE 2K18 available for download today. The DLC pack adds NXT Superstars Aleister Black, Drew McIntyre, Elias, Lars Sullivan and Ruby Riot to the game, and joins a list of add ons for the game that were, until now, available only to those who had pre-ordered the title.
So, the bigger news here potentially is that you can now get the Kurt Angle pack and the Cena (Nuff) pack if you did not pre-order the game as well; of course, if you have the $30 Season Pass for the game, you get all of these, plus all the future planned DLC packs for the game, automatically.
Going back to the NXT Generation Pack- you can check out what it entails for yourself with the trailer below. As fo WWE 2K18– it is available for PS4, Xbox One, and PC, with a version for the Nintendo Switch planned for release before the year end.