Proceed for potential spoilers:
These are current rumours published indepently of each other by both "TheAvatarist" and Caleb Williams (Knight Edge Media). We know from official information that Avatar Studios are developing an animated TV series, which will feature the next Avatar in the cycle after Aang and Korra, the Earthbending Avatar. This series is expected to debut exclusively on Paramount+.
BE WARNED that the spoiler tag includes heavy spoilers about potential setting, characters and story of the show.
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According to Caleb Williams, the main character we are following will first appear as a homeless young girl accompanied by a large feline animal guide, and will miss her left leg. This he has apparently verified. TheAvatarist also confirms that the main character will be a girl with a peg leg and she has a big cat-like animal companion. He says that she seems to be an outcast of society, with no one considering her to be the Avatar. Instead, according to TheAvatarist, her twin has been identified as the Avatar and raised separated from a young age.
According to TheAvatarist (and treated as a rumour by Caleb Williams), the story seems set in a post-apocalyptic world (based on seeing two episode animatics). TheAvatarist says he hears the "seven havens" are the cities where the remaining people live and outside them is post apocalyptic.
According to TheAvatarist, the people in general seem to hold Korra responsible for the apocalyptic event and therefore hate the current Avatar, which is why the main character's twin has been taken into hiding by the White Lotus.
Sources: Video by TheAvatarist, Article by Knight Edge Media
