I guess they could bring back the New Age Outlaws for that spot easily enough, but more likely The Revival is on the long list of guys they have no long-term plans for and they threw this together in the last couple weeks cause they were around. It's all about how Vince sees you and I think as they were coming back he said "oh cool, these are a couple small dudes we can feed to the legends!" I hope you're right, but the Smackdown tag titles didn't even get on Mania last year so I don't see the Revival being factored into this year's plans.