Now, I know the scheduled match is RVD v Dean Ambrose at the moment, and since there is no current tag team title match announced (Big Show and Mark Henry v The Shield) their could be a completely different scenario at SummerSlam.
What if, on the pre-show, Ambrose gets DQ'd intentionally with help from The Shield, which leads to the inevitable Big Show and Mark Henry save. They are brawling in the ring and don't seem to be going to stop and this is happening just before the PPV airs, so The Miz comes down (since he's in charge if he can make matches on Raw for SummerSlam I'm guessing he can on the actual night) saying that the show is about to start they need to stop, and he's sick and tired of The Shield causing havoc. So, for later in the night, he makes a match up of RVD, Big Show and Mark Henry v The Shield.
This would kill two birds with one stone as it gets all of them on the main card, and after Ambrose and RVD have a stellar match on the pre-show, people will be drawn in by this scenario.
However, if this happens, or just the tag team match happens, I think The Shield will retain either way by interference from Ryback. Ryback and Mark Henry's feud seems to be starting back up again. They faced each other last week, Ryback walked away, the battle royal last night, Henry eliminated Ryback. Ryback currently doesn't have a match at SummerSlam so he needs to do something, and this is what I think he will do.
What if, on the pre-show, Ambrose gets DQ'd intentionally with help from The Shield, which leads to the inevitable Big Show and Mark Henry save. They are brawling in the ring and don't seem to be going to stop and this is happening just before the PPV airs, so The Miz comes down (since he's in charge if he can make matches on Raw for SummerSlam I'm guessing he can on the actual night) saying that the show is about to start they need to stop, and he's sick and tired of The Shield causing havoc. So, for later in the night, he makes a match up of RVD, Big Show and Mark Henry v The Shield.
This would kill two birds with one stone as it gets all of them on the main card, and after Ambrose and RVD have a stellar match on the pre-show, people will be drawn in by this scenario.
However, if this happens, or just the tag team match happens, I think The Shield will retain either way by interference from Ryback. Ryback and Mark Henry's feud seems to be starting back up again. They faced each other last week, Ryback walked away, the battle royal last night, Henry eliminated Ryback. Ryback currently doesn't have a match at SummerSlam so he needs to do something, and this is what I think he will do.