#1 Change in how WWE books him.

This week's edition of Monday Night Raw marked a huge change in character for Roman Reigns and while it did have its dull moments, it was enough to get fans reacting to him more. Furthermore, it was enough to get fans cheering him on more and even chanting we want Roman in the process.
Not only is this a huge swing around from the boos that Reigns would solicit on a weekly basis, it is also an opportunity to finally build Reigns as the company's next top guy. Interestingly enough, however, it seems now that the plan is to do away with Reigns's squeaky-clean image and paint him as badass heel.
According to Cagesideseats.com's WWE Rumor Roundup,"The new speculation is that WWE is trying to book Roman Reigns like a cool heel in the hopes fans would then cheer him like a babyface." While that idea sounds ridiculous at first, it something that helped launch The Rock into superstardom and could work for Reigns too!