WWE never really wrapped business up between Brock Lesnar and Seth Rollins. Their Battleground match ended in a DQ when The Undertaker got involved. With that in mind, once Lesnar disposes of Taker at Hell In A Cell, it would make narrative sense if he went back to finish what he started with Rollins. It would be a neat way to come full circle from Rollins robbing the title off Lesnar at WrestleMania. Perhaps WWE would do it as the big WrestleMania 32 headliner, with Lesnar winning the Royal Rumble and going back after the title which he feels he never lost. Again, with Cena gone, the temptation could even be to get this feud on in November as a key Raw attraction. It would be a hell of a Survivor Series main event.