We heard that Triple H is "heavily leaning against" working SummerSlam. While he wants to work Roman Reigns at some point, he doesn't want to be overshadowed by John Cena vs. Brock Lesnar, which is clearly the plan barring a major change of direction.
As we've mentioned on a few occasions, Reigns vs. Randy Orton is the backup plan [for SummerSlalm] if Hunter decides against working. We're told that's looking more like the direction the company plans to go with Reigns at the show next month.
Vince McMahon is still hoping to do The Rock vs. Lesnar at Wrestlemania 31 next year, however, he's put the word out they need to get Roman Reigns ready for a main event spot at next year's show if Rock doesn't end up coming back.