I don't believe CM Punk is going to stick around in the OG Bloodline. CM Punk makes no sense in this feud. This feels like a smokescreen to set up Rollins joining OG Bloodline.
I think Punk will somehow get sidetracked next week and say he can't be part of the match anymore, and Rollins comes in to replace him. There's more than a week left and I think they deliberately announced CM Punk now to give them time for a swerve.