It really is absolutely absurd that Cena has gone that long without a clean loss, and it goes to show the great lengths the WWE will go to protect him. That's why I really hate that Owens is getting a rematch we all know he's almost a lock to lose. The guy has a ton of momentum, and losing to Cena two weeks after beating him, even if it's another great match, doesn't benefit him in the slightest. I feel like long rivalries with Cena just hurt younger guys more than anything, because everyone knows that Cena is going to end up winning them, which kills momentum for a guy trying to climb the roster.
And two weeks is definitely too soon for a rematch of one of the best matches of the year. If you're going to do a rematch, you should let the rivalry simmer a bit after the match those two put on. If Cena comes back and wins two weeks later, you've effectively just undone all the positives Owens got from that win. But this is the WWE, so that's probably what's going to happen. I really can't see them letting Cena lose two times in a row clean, although I guess Owens wouldn't really be hurt by a dirty win either. Still, very hard to see Cena losing twice in a row, which sucks for fans of Owens. If he wins, I'll be absolutely shocked.
As far as Kingston goes, well, they have to fill out the MitB match with some non-contenders, and Kingston has a pretty solid history of doing really cool spots in stipulation matches. He's likely in there to do his one or two cool things and then lose gracefully just like every other MitB or Rumble match he's been in. I also don't think it precludes the New Day from being in a tag title match since any of their three guys can defend the belts.