We don’t know yet what they are doing. Young Eva may be in the mix, along with Rumple and perhaps its the story of how Henry Sr. lost his line to the throne when Xavier’s kingdom fell to Leo’s. It could parallel how Regina ends up losing to Wicked.
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“If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?” -- Lewis Carroll, Alice's Adventures in Wonderland & Through the Looking-Glass