#4 The uncertainty of Jey Uso's status could cause Roman Reigns and Seth Rollins to unite
Roman Reigns may have no other choice but to join hands with Seth Rollins, considering that we do not yet know what's up with Jey Uso. Bear in mind that he was supposed to be a part of the Royal Rumble match but was then eliminated from the proceedings as reports emerged of him not being medically cleared to wrestle.
We obviously hope and wish for a speedy recovery for Jey Uso, someone who's been an integral part of the SmackDown brand and someone who has been a valuable on-screen asset for Roman Reigns. That said, an alliance with Roman Reigns and Seth Rollins in such a situation won't be the worst decision.
We've only seen Jey Uso in the background lately, not getting physically involved in the faction. Adding Seth Rollins to the mix resolves that issue, for the time being.
This may be a good quick-fix solution that leads to a wealth of opportunities, over the long haul.