Board Thread:Spoilers!/@comment-27060727-20161201052050/@comment-25926288-20161213235530

From Wish Rumple's implication, A Savior arises when there's a powerful Villain to defeat, etc. In Wish Realm, there's noone to defeat, unless Wish Rumple counts. However, Emma was still the Savior in that realm as well.

Either Emma will save that realm, or there will be a savior years ahead, but we won't see it. Being a Savior requires Prophecy, a great evil to defeat, etc. Robin wouldn't be a Savior unless there was prophecy all along that meant him.