Board Thread:Spoilers!/@comment-25926288-20170203182557/@comment-25926288-20170421171110

AlbOuat wrote: I really hope they'll reveal Zelena as a Savior. After all, they said that we would have met another one, so unless it's one of the two mystery characters from the finale, Zelena is the only option left. Yeah, I'd hope something. The only issue is that Zelena's magic is so tainted with Envy that she can't wash it out. So, if she does somehow relinquishes her dark magic, but the twist is she has light magic galore, then I'll be happy with that.

Since TL is a fairy and we won't be seeing anyone else but a moody guy and a little girl, Zelena is a fair bet. (Unless the other savior is a random person in a flashback).