Turtle Rock's Evolve had a short role in Microsoft's press conference today. Apart from a short teaser trailer, 2K announced that Xbox One users will have access to a beta. Further, Xbox One will have a timed-exclusive on downloadable content to come to Evolve.
Microsoft's set a precedent as far as securing exclusive rights to DLC. Just this morning, it revealed that it again has wrapped that up with regard to Call of Duty: Advanced Warfare add-ons.