#1. Alexa Bliss becomes Sister Abigail
Bray Wyatt has tried to bring the sister Abigail character to life several times and they might just be able to pull that off with Alexa Bliss. Not only is she the perfect choice to play the mystical goddess-like character, but it also puts her in a role where she isn't as prone to getting injured.
For example, if Bliss became Sister Abigail, she wouldn't have to wrestle as much and could just act as The Fiend's manager. While that might seem like a demotion for a multi-time Women's Champion, it would be a very high profile role and could always lead to a title run down the line.
In the end, WWE fans have always wanted to see their Bliss fan fictions acted upon and watching her join forces with The Fiend is one of them. Of course it might not be a relationship storyline like fans are probably hoping for, but it would make The Fiend character stronger than ever.