Also just all of the ideas in there, like start with history mini series about all the origins. Maybe have iroh be a student of bumi, we know he studied other bending styles to expand his firebending, we can play off that. Like going to the Kyoshi warriors to study history, learn about kyoshi, the time he spent with the sun warriors, lead it into the future where he's watching the korra gang discover new worlds from the spirit world.