Board Thread:Spoilers!/@comment-24589671-20140317020802/@comment-8345449-20140318131831

ChocolatEyes613 wrote: I was thinking.... the Wicked Witch will use the Sleeping Curse on Regina, in the finale. Henry will regain his memories, wake his mother with True Love's Kiss, and break the new curse. It would be the Season 1 finale, in reverse!

I think it more likely that Robin Hood would be the one to break the Sleeping Curse if it was indeed cast on Regina.