Jobbing to Cena at WM was his reward.....Maybe somewhere down the line, but it'll never happen any time soon, Lesnar ain't dropping that belt until he faces Roman, and Miz ain't beating Roman, so you're looking a LONG way down the road, and a lot of things could change since then.
It's a shame because Miz has been absolutely awesome over the last year, and his reward was to be drafted to the mess that is RAW's midcard scene. There was really no reason to send him over, he should have been one of SD's anchors, along with AJ and Becky, those 3 should have been the mainstays IMO. He seemed nailed on to win MITB then they completely threw a curveball.
Honestly he proves that grabbing the brass ring doesn't exist, and you'll only ever get a minor short term reward at most.