Zoe Saldana have been confirmed as starring in the next threeAvatarmovies.
Director James Cameron will reunite with the duo on-set later this year when [uuid=fa4ead3c-a3de-4a26-b53d-3f3cde156620]production is scheduled to begin[/uuid].
Much like Peter Jackson's The Hobbit trilogy, all three as-yet-untitled Avatar sequels will be filmed back-to-back, with the first follow-up set for a December 2016 release date.
The second and third sequels will hit the big screen in December 2017 and December 2018.
Cameron said: "Jake Sully is a rare combination of passion, strength, street smarts and soul, which requires a lot from an actor. Sam brought to the role a combination of sensitivity, vulnerability and strength.
"Zoe captured every aspect of the character I envisioned, bringing to Neytiri a mix of delicacy, fierceness and incredible physicality. I am beyond pleased they'll be returning with us to Pandora."
Stephen Lang, whose mad Marine colonel dies in the first movie, is also set to return - though obviously the circumstances of his comeback are unclear.
The Hollywood Reporter claims to have discovered that the sequels will see Worthington and Saldana's characters having children together.