At this point WWE has been discussing the idea of Orton possibly cutting a promo during the show, or delivering the RKO at some point. While the exact details of what Orton will be doing have yet to be decided on, WWE does want to feature him in some way on the PPV.
WZ has been told that the decision to keep Orton off SummerSlam in a wrestling capacity was made while Orton was suspended. A source noted to us the reason why was a combination of creative not having enough time to work him into the show, and further punishment for failing the Wellness Test.
In related news, WZ has been told that the addition of Kevin Rudolf's musical performance on the show will make it highly unlikely that both Damien Sandow vs Brodus Clay and Cody Rhodes vs Sin Cara will take place.