I was lucky enough to get the Hoid response that Argent alluded to, though on a re-listen, I'm not sure if it's as plains-shattering as I initially thought. The question was"Does Hoid have any [blood] relations other than his parents," with a response of "Hoid have any like, direct blood relatives? Umm... Okay. In the book when I wrote it before, he didn't. Dragonsteel isn't 100% canon any more, so that will possibly change, but he did not, and there are none in my mind right now. He is an only child as I have him. It's unlikely to change, but I do have to asterisk that one because I haven't written Dragonsteel yet." Having moved on to another question, Brandon came back with, "Oh, no! He had a little brother. He did have a little brother. Even in the original. Yep, he did." When all is said and done, I'm not certain what the canon version will end up being.