Here is an interesting turn of events. Nick have just put up a family tree feature on their site and it reveals the name of a few characters, while also highlighting many of the family tree mysteries we still have.

New Characters Revealed Unalaq's Wife - Malina Granma Yin's husband - Bohai Mako and Bolin's Mother - Naoki Chow's (Mako and Bolin's Uncle) wife - LiLing Chow's other kids - Chow Jr and Meng-Meng Asami's mother - Yasuko Things not revealed that we are waiting for Su's Father is left unknown Iroh's Wife (ATLA Iroh) Zuko's Wife If Azula had kids or married. If Sokka had kids or married So overall this is an interesting feature I would definitely recommend everyone check out, but I do wonder why they are keeping some of these names a secret. I can understand Izumi's mother as Zuko and Mai's relationship will be addressed in "Smoke and Shadow" and perhaps Sokka's relationship is something to come in the comics. But names like Iroh's wife, who will probably never get any other information, I don't understand holding back. Thoughts?

Chi-Blockers, The Scourge Of Benders