Bryan has
confirmed the current reigning monarch of the Earth Kingdom is an
Earth Queen. Given that Book 3 is supposed to focus on Lin, many people have interpreted this together as an indication that the Earth Kingdom will be featured and this Earth Queen will appear in Book 3.
Furthermore, production on Book 4 is underway as well.
- Book 4 is the confirmed end of the show, with 13 episodes.
- Jason Isaacs (Lucius Malfoy - Harry Potter, Zhao - ATLA), Jason Marsden, and Anne Heche have been added to the cast in at least one scene with Jinora. source
- There is at least one scene with Katara and Korra. source
Hopefully with the shorter wait for Book 3, we will be getting more and more information soon!
This post will be updated with new information when it becomes available.
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