Board Thread:Spoilers!/@comment-1916997-20150313202428/@comment-5899967-20150320143926

Hmcooper4 wrote: Maybe the Black Swan is the S5A villian, and its up to Regina, Gold, and Killian to restore the proper order.

As I already said, Emma could go bad for a couple of episodes, but I don't think they'd turn the protagonist into a full antagonist for an entire season.