I wish Netflix would get the rights and produce new seasons of the animated series. There is a lot of story to be told between Zuko’s mother’s storyline, the founding of Republic City before the Legend of Korra and the adventures of team avatar as adults.
It’ll be great to have more stories from that universe, but why that storyline? There just isn’t a way to make it compelling. We already know that all of the characters live until old age and the only one who dies is Aang, but not because of any conflicts.
At best they will be able to do a coming of (adult) age drama, but coming of age stories were already well covered by both of the series.
In a universe that has literally hundreds of super heroes, most of which have legends attached to them, why not tell some of those stories?
Kinda the exact same issue with all of the star wars content right now. Why do we need an ashoka, bobba fett, Obi-Wan TV show. I think it’s a symptom of milking a franchise/being afraid or unable to expand in other directions.