#3: Roman Reigns returns to destroy the "big plan" of Seth Rollins

Seth Rollins has done some evil things lately, and to top them all, he is responsible for 'blinding' Rey Mysterio during their "Eye for an Eye" Match at WWE Extreme Rules.
Thankfully, Rey Mysterio won't be permanently blinded for the rest of his WWE career, but it's going to be a while until the legendary luchador makes his successful comeback.
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In the meantime, Dominik, the son of Rey Mysterio, is determined to avenge what The Monday Night Messiah did to his father. Seth Rollins has been hinting towards his "big plan" for the future of WWE for months.
It doesn't look like he is going to be stopped anytime soon. If there is an endgame to this long-term storyline, why not have Roman Reigns be the one to stop Seth Rollins' plan?
That could certainly be an engaging storyline for Reigns when he returns to WWE, as we all know the history both men have as Shield brothers.