Board Thread:Spoilers!/@comment-1916997-20160130171349/@comment-3010035-20160130225539

I really like your theories! Here are some of my own that don't specifically require an episode

-James will imprison David, and swap places with him in order to return to his father. Snow will realise an episode or two later, and ask Regina to rip out his heart. When she sees that either it's whole or isn't there (idk what goes on in dead people's hearts), Snow will begin to fight him yelling for her husband. When they eventually find David, there will be a David x James duel.

-In the Devil's Due we will be seeing a flashback to Rumple's first trip to the Underworld, and what it was like for him then.

-In Our Decay, the Oz and Storybrooke events will be in the present, with both Belle and Zelena making their way to the Underworld by the end of the episode. In Flashback we will see Hades's history with Zelena.

-We will recieve a Hades flashback episode, which will include all the members of the Pantheon, some of which have appeared in other episodes (Zeus, Labor of Love, Dionysus, The Brothers Jones, and Poseidon, Poor Unfortunate Soul)

-In the episode that we learn of Robin's dark past (which let's face it probably won't happen knowing Adam and Eddie), we will see Marian and Daniel in the Underworld, making life very complicated for Outlaw Queen.