Deadnight Majin Ok.
Well at Summerslam, the referee is accidentally knocked out by a clothesline by Brock Lesnar. Lesnar hits Orton with the F-5, but the Shield who has been missing from the WWE since Wrestlemania makes their return and take out Lesnar and rolls Orton on Lesnar for the victory.
The following night, the Shield announces their allegiance to Orton. Orton continues to have the Shield do his dirty work. Eventually a split happens and Roman Reigns leaves the Sheild because Orton frequently mocks the Rock for the year and claims a war on all thing Samoan(which leads to their eventual Wrestlemania match). In the mean time, Reigns goes on to receive this major push on Raw while Orton continues his hold on Smackdown.
Orton in the mean time will feud with Ziggler, Sheamus, and Del Rio, or some combination of top end babyfaces.
At the Royal Rumble, Reigns rise to superstardom is complete and he defeats Orton for the WHC. An irate Orton enters the rumble after taking the spot of someone like Santino. When his number is called (21), he never makes it to the ring, because the Rock's music hits. The Rock returns and kicks Orton's ass leaving him unable to enter the Royal Rumble.
Rock and Orton feuds for the next couple of months which leads to their match at Mania.
*Reigns can be substituted by any of the Shield members, or some up and coming superstar that need a huge win at the time to become one of the faces of the company. Out of the current bunch, he comes to mind as a superstar with star potential.