Rumours about the next mainline Avatar series have been circulating ever since Nickelodeon announced that Michael DiMartino and Bryan Konietzko were returning to lead Avatar Studios. But now, we finally know a bit more about where the franchise is heading after The Legend of Korra.

Today, Nickelodeon announced that the Avatar saga (which began with The Last Airbender) will continue with Avatar: Seven Havens, a new 2D animated series co-created by Konietzko and DiMartino and executive produced by Ethan Spaulding (Mike Tyson Mysteries) and Sehaj Sethi (The Winchesters).

No casting or potential release windows have been teased, but the network shared that Seven Havens’ story will be told over the course of 2 seasons consisting of 13-half-hour-long episodes each.

Seven Havens will introduce a new earthbending Avatar who is seen as a threat to the world because of her powers. “Hunted by both human and spirit enemies, she and her long-lost twin must uncover their mysterious origins and save the Seven Havens before civilization’s last strongholds collapse,” according to Nickelodeon.

Though Netflix’s Avatar project is its own thing separate from what Avatar Studios is working on, there might be some narrative tissue connecting Seven Havens’ story with Nickelodeon’s upcoming movie focused on Aang and his friends in the time between The Last Airbender and The Legend of Korra. But that won’t become clear until Nickelodeon decides to share more.