Board Thread:Spoilers!/@comment-25375217-20180117025415/@comment-1916997-20180212225144

Saintfighteraqua wrote: I love all of these Oz theories but they hurt so much because I know they won't happen. I hope Mombi appears...she's actually got a reason to be there and everything.

Well, it is a Zelena centric and the FB is her prior to Season 3, so they have to be doing something Oz related. My top 3 guesses are: an interaction between Zelena and Mombi; how Dorothy ruined Zelena's first attempt at a time travel spell; or Zelena killing or otherwise hurting her adoptive father. Of course we could get more than one of those happening in the FB as well.