Apparently, there's been some issues with creative's decision on how to end the match since they don't want Ryback to look weak by getting pinned but not at the risk of Punk losing his belt. The way I see it, they should just make it a triple threat match and here's how I think it should happen:
Make it a triple threat match by announcing the return of a superstar, Jack Swagger, and have him placed in there on RAW. Swagger's been off of TV for a while to "think his career through" by "taking time off" so perhaps in his absence, he's gotten "better" and makes a case to AJ to have him thrown into the mix at HIAC. She agrees and during the match, Ryback hits his finisher on Swagger, Punk steals the pin and a feud between Ryback and Swagger starts since Swagger blames Ryback for costing him his shot at redemption which leads to a feud that puts Swagger over whether he comes out on top in the feud or not.