Now the publisher and developer has finally shown the mysterious game in question and announced its name: Avatar: Frontiers of Pandora.
Ubisoft developed an Avatar game around the release of the first film in 2009 and announced it was making another game in 2017 around the release of the second movie slated for December 2022.
No specific date was announced and the game is not coming to PS4, Switch, or Xbox One.
It is coming to the PS5, Xbox Series X/S, PC, Amazon Luna, and Stadia sometime in 2022.