The more I think about it the more I think our Mystery Man is Baelfire, Peter Pan and Henry’s dad. I do wonder if the bean took Bae to “a land without magic” or someplace he needed to be. If it was the later, then I can see him being sent to Neverland. In the story of Peter Pan, Peter visited our world to listen to Wendy’s stories. Maybe he was visiting and somehow got stuck in our world, forcing him to grow up. He felt some attraction to Emma because they’re both from the Enchanted Forest and they had a fling. Then later he met August because he recognized another fairytale land person and they struck up a friendship.
If Hook turns out to have ran away with Bae's mom, it would come full circle for Bae to be Peter and have Hook as his nemesis. Plus, I think Rumple had something to do with cutting off Hook's hand. The whole Rumplestiltskin family intertwined with Captain Hook.
Yikes, if that's true, then the supposition of Emma and Hook being involved in the future would really light up Storybrooke.
Keeper of Rumplestiltskin's and Neal's spears and war paint and crystal ball.