#3 Jey and Jimmy Uso start a feud with Roman Reigns and Seth Rollins
Last year, during Jimmy Uso's absence when Jey was feuding with Roman Reigns, one of the things that he lacked the most was the support of his brother. Reigns overwhelmed him and used cheap underhanded tactics to get exactly what he wanted — the submission of Jey.
There's a ready-made storyline waiting right there. Jimmy Uso was not happy during this week's episode of SmackDown, and the potential for conflict was built into the storyline. As a result of that, Jimmy could help his brother find the confidence that he had lost previously, and break away from Reigns to start a feud with him again.
Reigns has not made many friends, but in Jey Uso, he has built a follower. Other than a misplaced sense of loyalty, there's very little keeping Jey with him. The feud between the family members would be one of the better storylines that WWE could book.
Both Jimmy and Jey are more than capable in the ring to hold their own against Reigns. This could also see Seth Rollins join Reigns and a partial reunion of the Shield take place, as both stars look to take on their common enemies.