Board Thread:Spoilers!/@comment-6175354-20140420035659/@comment-24674051-20140423174341

Actually, Regina kept her memories with the original curse. and she was able to cross the line, as she had to when she went to get Henry from Boston. Other than that, she never wanted to leave Storybrooke.

I am still not sure that it was Hook, that is just one theory. But I do suspect that the sacrifice of hte Jolly Roger was required for Hook to get to NYC, regardless of whether Hook or Team Regina cast the new curse.