Avatar Legends DLC season 1 pass. Pre-order the games, and you can vote on the final DLC fighter of season 1.
I'm not sure if it's known by all, but the game developers have shared their vision for the remaining fighters in Avatar Fighters. I've seen some guesses that differ from what was stated during the panel. Here's a summary of what they stated during the panel.
Uncle Iroh -Dicotomy between the Tactical Iroh and Dragon of the West. They want to highlight this; his ability to counter attacks will be very strong.
Ty Lee- Hardcore rushdown, erratic movement. They will highlight her acrobatics, a very tricky fighter. They are trying to get as much CHI-blocking as possible, but they will test it. Hello noodle arms...
Lin Beifong- (producer's must have) Variety of movement options, HIGH FLYING with cool metal bending. The ability to move all over the screen.
Bolin-Unique take of an Earthbender. Lean into his probending and lava bending (a mix between fire bending and earth bending techniques currently in the game, but with its own unique twists).
Fan vote DLC
Tenzin - High air mobility, master air bender.
Kuvira - All about CONTROL. Mid-range fighter, who uses her metal "bits" all over to control the screen. "Going to be crazy".
Amon - Blood bending and Chi-blocker. He will have a unique take on CHI blocking compared to Ty Lee. He is more likely to SEAL YOUR TECHNIQUES. (Will need to test)
King Bumi - weird, eccentric fighter. Teleport through the ground, reappearing in different spots. 2-part earthbending moves where he creates earth objects and "does things with them"
Asami Soto - the inventor. She will have a lot of tools and set traps. She will use a lot of tech, she will have the electric gloves, and be a setup fighter.