You might be onto something. But what about this? What if the price of leaving Storybrooke is for him to give up his powers altogether? What if his powers don't return once he re-enters Storybrooke? This may sound like a bad thing, but it may turn out to be a godsend. Thanks to the promo, we know that Regina and Cora want to find Rumpel's dagger and control him with it. But if he no longers has his powers, then the dagger will have zero impact on him.