Board Thread:General Discussion/@comment-25926288-20161207195414/@comment-24674051-20161208191734

My guess is that we may never hear about the Dragon's daughter again. The statement that he made about losing a daughter may have simply been a statement to indicate that he was not immune to the feelings of loss and discouragement that Emma and Regina were feeling in the Mirror Realm.

Not all statements made by a character need to be a setup for another story. (although they can always be used that way, if needed.)