In the preview for Once In Wonderland, we see Cora as the Queen of Hearts and the scene where the Mad Hatter is dragged before her. So I would not be surprised to see Barbara Hershey in Once In Wonderland. Also, Rose Mcgowan has said she would be open to returning to Once. I would love to see her resurrected and for her to have no memory of Regina. That would be an interesting dynamic for the show. Plus, I think Cora would make a great addition to the crew of the Jolly Roger.