#3. Great - An impromptu tag team match with Seth Rollins
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While we too, admit that this isn't the best reason to bring Roman Reigns back, it's possible that WWE may be bringing him back just to help with the MITB build. There were rumours that more SmackDown superstars will be present on RAW before MITB so they can help with the build.
What if Roman Reigns were to come out and then get into a confrontation with an old rival, leading to Seth Rollins coming in and teaming up for a match? Rollins & Reigns vs AJ Styles and someone else would certainly be a great option and it would make for a great main event.
As we mentioned, we don't believe this is necessarily the best idea, but if the SmackDown roster is being brought over backstage to Monday Nights anyway, it makes sense for them to utilize a star like Roman Reigns so that they can have a solid main event for RAW.
Major rumor about recently released stars HERE