So tomorrow's Payback with Reigns vs AJ with the Bullet Club lurking around the storyline. Here's how I think I'd handle the world title scene through SummerSlam.
At Payback I'd have Gallows and Anderson come out, but instead of attacking Roman have them turn on AJ. Have Reigns win due to the attack, act surprised momentarily before giving both of them a big hug and going with it as their plan all along. On Monday's RAW Reigns and G&A brag about getting one over on everyone - especially AJ. AJ comes out and challenges G&A to a tag team street fight with his partner.... FINN BALOR!
Balor and AJ work as faces and get one over on G&A in a good match at Extreme Rules. Meanwhile Reigns beats some face as he works a heel character. At MITB, Reigns wins again with the assistance of G&A, while AJ wins the MITB match with Balor making a save late in the match that takes himself out of the running as well.
At Battleground, Reigns wins again with the help of G&A, but this time after the match G&A attack Reigns and beat him up pretty good allowing AJ to cash in and win the world title. The next night on RAW AJ is joined with the Bullet Club and all admit that they tricked Reigns all along and that G&A were plotting this the whole time and just waiting for the right moment.
At SummerSlam, AJ retains over Roman who can't overcome the strength in numbers of the Bullet Club in what will be a great match. AJ has the ability to put on great matches in his reign to overcome winning the title with the briefcase.
They need a good old double turn stab in the back story to breathe some life into their world title scene.