Board Thread:Character Discussion/@comment-4772791-20131216021605/@comment-8345449-20131216115109

I think Regina meant that only for Emma and Henry, to them it would be as if Storybrooke did not ever exist, so their memories would be altered accordingly. One of the rules of magic is that you can't change the past, so all events that happened because of the curse can't be made void just because the curse is destroyed.