Board Thread:Spoilers!/@comment-30389283-20170109232857/@comment-1916997-20170112161524

Wicked Wizard of the West wrote: If Tiger Lily and Dorothy are both Saviors to join the Savior Squad, then Zelena may get a centric. Don't forget that Black Fairy needs an origin episode too. I'll give the other centric to Belle, cuz she plays integral part to Gideon's redemption.

And the 2-part finale, it could be Emma's, or Black Fairy's, or noone's centric This is all very speculative though. And the two part finale could be Zelena's centric for all we know. Maybe they will lead into another Oz arc, like how Season 2 lead into the Neverland arc. It's really too early to say at this point.