I admit that the Summerslam card right now leaves a LOT to be desired, and that in part, is due to the injuries to HHH and the Undertaker. That being said, I still think this card could be salvaged pretty easily.
Honestly, as far as Team WWE vs. The Nexus, we do have 14 wrestlers represented in 1 match, so it's going to get significant time, especially with legit main event players like Cena, Edge and Jericho on WWE's side. With Khali maybe unable to go, there could be a replacement and boy would HHH or the Undertaker bolster this main event?!?!? I think a big return is needed here. The replacement options for Khali if there is no big return rests on the likes of the Miz or Mark Henry or Ted Dibiase, none of which are very enthralling.
As far as Kane vs. Rey, to be quite honest, my interest in this match would sky-rocket if they did the logical thing and turned it into a Casket Match. Sure, Casket matches are just glorified NO DQ matches where you shove your opponent into a casket, but it fits, and it would make things much more interesting. And a return of the Undertaker is imminent.
On Smackdown!, they should also add Dolph Ziggler and Kofi for the Intercontinental Title, and due to the way Kofi's lashed out at Dolph ruthlessly, or as close to ruthlessly as is allowed in the PG era the last few weeks, let's do it NO DQ. Kofi has the intensity to do it and it would make it MUCH more enjoyable seeing as we have the character shift in Kofi and the 3 consecutive straight up singles matches between the two. This spices it up.
Also, Christian vs. Drew must be added. Sure, it's got VERY MINIMAL build, but it can be the start of the feud rather than the closing of one. That and, honestly, it would be a very solid match and with Drew bragging about taking Christian out, at least there's reason for it to happen! The latter two matches certainly give quality of wrestling to the show potentially.
Now we have...
Team WWE: John Cena, Chris Jericho, Edge, John Morrison, R-Truth, Bret Hart and HHH vs. The Nexus
Sheamus vs. Randy Orton for the WWE Championship (with Miz involvement somewhere)
Kane vs. Mysterio in a Casket Match for the World Heavyweight Championship (with the return of the Undertaker somewhere)
Dolph Ziggler vs. Kofi Kingston in NO DQ match for Intercontinental Championship.
Christian vs. Drew McIntyre
Big Show vs. Straight Edge Society
Alicia Fox vs. Melina for Diva's Championship
With those two Smackdown! matches added and with the tweaks to the existing matches, I think the card would be much improved. Thoughts?