I suddenly have this image of S6 ending (with a promised S7) with someone casting the Dark Curse and reverting everyone back to S1 status and someone (not Emma?) having to break the curse all over again (the twist is that this time, Regina is cursed as well and Rumple has his memories and once the curse breaks in 7A, the final battle happens with everyone vs Rumple)
*twitch*
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"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy