From the article mia posted
We will learn the identity of Henry’s father. Although they’re not saying who it is, or even if we’ve already met him, the show’s creators do know the identity of Rumple’s son. They reminded us that Rumple has gone through a lot of machinations to find Baelfire, and he’s unlikely to stop searching for him. The loss of Baelfire is Rumple’s biggest regret and in a sense, believe Adam and Eddie, the moment he lost his heart.
What does it mean “the show’s creators do know the identity of Rumple’s son” ?
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