Board Thread:General Discussion/@comment-24589671-20140329051413/@comment-2153169-20140409170748

ChocolatEyes613 wrote:

Then Snow White would never have met Prince Charming, and Emma would never have been born.... which means, the Dark Curse could never be broken.

And no Dark Curse too ^^ Only a daughter of Cora could cast the Dark Curse according to Rumple. If Regina is not born, only Zelena could cast this Curse... And, if she comes back in time, she'll probably keep her memories so... Why she would help Rumple? :)