OK, based on my thinking that it’ll be a boy, named after Charming’s father, who I hope has an Arthurian connection, I’ve decided to nominate Tristan for the name. Since Charming said no to Leopold, I was looking through a list of Arthurian characters, to see which of the Knights’ names sounded the most normal. 😛 Not only does Tristan sound like it could be a modern name, but his mother’s name was Blanchefleur, which made me think Blanchard.
(Plus it would allow for a cool backstory if Ruth was really Isolde. In some versions of the Tristan and Isolde legend, they run off together and have kids. And they get together due to a love potion, which sounds like a stunt Rumple might pull to get them together if he’s foreseen that he’ll need their sons.)
So I’m taking a stab and betting my cookies on Tristan.