The supposed match is face vs. face.
Which it should be, but lord knows the WWE will stomp it out once Bryan starts overshadowing Cena. They'll either turn Bryan heel to make Cena seem more popular, even though Bryan will still be mad over or they'll have Cena leech the shit off of the YES! chants and what not.
Seth/Reigns versus either of those two teams will super awesome and I reckon Taker will be more than down for working it.
Rey/Ambrose just seems random as hell, would much prefer Rey/Swagger as those matches could be pure badassery.
I like Langston too, but lets face it that either of those two proposed matches are just basically to do like what they did with Ryback, "Hey look how strong this guy is, he can hit his finisher on Tensai/Henry/Big Show!"