Think its pretty safe to say that Bae is Henrys father which would complete the circle. Which makes Rumple the grand father to Henry.
So it be Regina & Cora against Emma,Bae,& Rumple. Interesting.
Of course they could make it even more complicated... I've often wondered if they're going to have Henry (the boy) turn out to be Henry (Regina's father).
But I'm not even sure I could follow the family tree if that happened.