Board Thread:Spoilers!/@comment-25733960-20170312061043/@comment-24674051-20170315183541

Interesting, though. Based on what we know of saviors, they need an opponent to defeat. And Regina was Emma's, or at least that is what we have been led to believe. And Emma has defeated Regina. Which to me means that there is actually another opponent for Emma to defeat that is the true villain.

And if that is the case, then who would that villain be? Unless they want to pull some really major surprise, then I don't think it would be someone that we have not yet been introduced to. And, to be fair, it should probably be someone that was instrumental in the casting of the Dark Curse, since that was also the origin of Emma's savior status. That, plus a couple of other things point to only one person, which means that the final battle could be between Rumple and Emma. (Just speculation)