- Avatar Wan came out of an idea originally planned for Avatar: The Last Airbender that was never used.
- New types of bending are usually extensions of the four elemental bending arts as Metal Bending came out of Earth Bending. (same is true for Sand bending along with Blood bending from Water Bending)
- The climatic fight between giant cosmic Korra and Unalaq as the Dark Avatar mirrored scenes from "The Clash of the Titans", "Godzilla", and "Pacific Rim".
- Eastern philosophy is the inspiration of Book Three being called "Change" as the anicent chinese philosopher Lao-tzu is quoted as once saying: "If you realize that all things change, there is nothing you will try to hold on to."
The rest of the interview also revealed:
- Bumi will appear a lot more in Book 3.
- They do not have any plans currently for another series that would come after Korra but the universe they created 'will always draw them back' , but they for now want to finish Books 3 and 4 first.
The full interview: