Assuming Roman Reigns doesn't factor into the main event (perhaps he'll be given a last minute match against, sigh, Kane), then Brock Lesnar returning after his suspension would certainly help make Elimination Chamber a memorable PPV. The Beast being at SummerSlam is a given, and there's a chance that the WWE will start setting that up now. Seth Rollins walking away with yet another cheap victory could prove to be too much for the enraged Lesnar, and him suddenly jumping out of the crowd to remind Rollins that he still has his sights set on "The Future" would no doubt get everyone talking come Monday. Of course, the fact that he was suspended complicates things somewhat, and you have to wonder how exactly his return is going to be handled, especially after he was sent home indefinitely. Perhaps The Authority will have him waiting in the wings to take down Ambrose should he win the title as they may begin to realise that Lesnar is a safer bet than Rollins.