As of Monday afternoon, The Big Show is cleared for action in the ring. There have been numerous reports, includin F4WOnline.com saying that Show and Mark Henry will team up and take on The Shield at SummerSlam. While that is not out of the question, the reason they did not hype this match on Raw is because the script was already written before WWE was given the news of Big Show being medically cleared to return. Big Show also mentioned on Twitter that he will be at WWE Axcess SummerSlam weekend.

Mixed Tag Team Match Possibly Added
With five matches on the WWE SummerSlam card, expect WWE to add at least two more matches. One of the matches being considered is a mixed tag team match that would pair Dolph Ziggler and Kaitlyn vs. Big E Langston and AJ Lee.

That wouldn't make sense because of Layla.

^
Nothing makes sense in WWE anymore. Of course Layla is gonna be a factor. She'll interfere and cost Kaitlyn and Ziggler the match. That's what I think will happen. Either that or Layla will be banned from ringside, but why do that when she's fresh to the whole "pair-up with AJ Lee" thing?

Who cares what match they add? It'll just be the piss break.

A Big Show and Mark Henry vs. The Shield as a Handicap match for SummerSlam sounds great. They need to hype it up fast and soon.

^^
It won't be if it's just Ziggler vs Big E
and have AJ Lee with Layla vs Kaitlyn

If Jay were on the card, he'd watch it on an iPad WHILE he took a piss.