Board Thread:Spoilers!/@comment-11464223-20140301020253/@comment-24386552-20140301025920

I have this theory that, the heroes will go to Dorothy who has faced the Wicked Witch in the past, and they will end up defeating or killing her. Then it's revealed by Zelena, that Dorothy is actually worse than she was, because of her reasons. She will die before helping the heroes out. Dorothy will become the big bad for the final 2 episodes of the season. And the flashback will take place in Kansas. Where it all started. At least in the original Wizard of Oz movie.