I don’t think they are going to tell anyone if Neal is Bae just yet. He’s just going to hang out and watch and see what kind of man Rumple turned into from afar. Then, after Henry is kidnaped and Neal realises that they are going to need more help, that’s when he plays the Bae trump card.
I think it would be epic. And, as sadistic as it sounds, i want to see Rumple when he realizes that Bae has been back for a while but didn’t say anything until he needed something. Don’t get me wrong, i want him to have his happy ending, but i think that after everything he has done he’s REALLY going to have to earn it.