I love Seth Rollins as this douche heel champion. The next one after Payback would probably be good, definitely don't want it to be Reigns yet, but I'm curious where Lesnar will come back into play. He was suspended in story and hasn't shown up at all since Raw after Wrestlemania. He's the only missing part of the Wrestlemania shenanigans that should probably come into play. My guesstimation, is that Rollins somehow wins at Payback, which takes out Reigns and Orton from the running, which then makes the match come down to Lesnar vs Rollins? Could be completely wrong on that though.
I'm also anticipating the return of Masked Kane. They are building up to his leaving the Authority, maybe him ruining Rollins keeping of the belt as his last move, since they talk about how it was him that got him the chance at the belt in the first place.
I could see someone winning the Money in the Bank briefcase and cashing in soon after and winning but I'm not sure who that would be. Probably who ever will feud with Brock Lesnar. Speaking of which, I'm pretty sure Brock Lesnar will return SummerSlam since that's the second largest PPV.
I kind of actually like Corporate Kane because I enjoy his mic skills. I just think the character is kind of boring, I would like to see him without his mask but in a different role just so he can keep talking. Maybe as GM of RAW? I don't even know who the current one is if there even is one.