#2. Could Mysterio be the one Bray Wyatt has been waiting for?
Rey Mysterio is one of the biggest wrestling legends of all time and someone who has never been seen as a traditional heel in WWE. He's the perfect victim for someone like Bray Wyatt and a feud between the two men could take the interesting turn into a mask vs mask match in the end if WWE pushed it far enough.
The FireFly Fun House ended a few weeks ago and Bray Wyatt's puppets have been looking for someone backstage ever since. It's entirely feasible that Wyatt has been looking for someone who is seen as the biggest hero to the WWE Universe so that he can prove that he's really is a villain.
Mysterio is the perfect person for Wyatt to feud with coming out of the FireFly Fun House since he's a safe pair of hands and could carry a feud with any superstar.