I think they are going to use the hat emma made to go get her and MM. I wonder if it will have different rules than Jefferson’s hat. If it does maybe it could serve as a link between the worlds. People in Storybrook could go to what’s left of their home (it may be in ruins, but it’s still home) and the survivors may go to Storybrook (It’s not home, but it’s a nicer place) if they want. It would be an interesting way to shake things up, but i’m not sure the show is ready for it just yet.