Disney has announced the official title for Avatar 2 at Cinema Con. Avatar: The Way of Water’. It will be released under 20th Century Studios.
The provided description of the film says the following:
“Set more than a decade after the events of the first film, Avatar: The Way of Water begins to tell the story of the Sully family (Jake, Neytiri, and their kids), the trouble that follows them, the lengths they go to keep each other safe, the battles they fight to stay alive, and the tragedies they endure.”