>>9191338Another wrinkle in the Snake and Lizard saga is the last Filmation MotU episode, "The Cold Zone" (first aired December 8, 1984). JMS gave Kobra Khan a backstory as a member of the underground Repton kingdom. No connection to Lizard Man, mind you.
The minicomic "King of the Snake Men!" seems to allude to them when Kobra Khan says "No one has used that [writing system] in thousands of years! Even my people can't read it anymore!", just as it later references Rattlor and Tung Lashor being from Etheria and not the timeless dimension.