#3: Dean Ambrose to turn on Seth Rollins

Dean Ambrose has been a strong babyface for quite some time now. He was the top face of Smackdown in the latter half of 2016 and has been garnering a positive reaction from the audience week in week out.
His story arc with Seth Rollins leading to their reunion was one of the finest and perfectly executed angles in recent memory. The reaction underlined that very fact.
Female superstar says she inspired John Cena turning heel HERE
Most fans are expecting one of them to turn on the other soon, and Dean Ambrose could still be looking to revenge what Seth did to him and Roman back in 2014.

A loss leading to Dean losing his mind and destroying Seth Rollins would be unexpected and could result in a full-fledged feud between Seth and Dean.
It may be too soon but is still a possibility.