Following the initial announcement that the second installment of science fiction "Avatar" will be released by the end of 2017, latest updates from the creators of the film revealed that fans might have to wait a little bit longer for its release.

The making of "Avatar 2" is already in full swing, along with the other sequel that will complete the trilogy. It has been announced that the third installment will be released a year after the much-anticipated second part.

A report from Star Mine News reveals that "Avatar 2" will feature the reappearance of Sam Worthington as Jake Sully and Zoe Saldana as Nevtiri. Romance between the two characters which developed in the first installment of the film will continue in the sequel as they build a family of their own.  

Spoilers for the upcoming film suggest that Jake Sully will be the chief of the tribe before marrying Neytiri, and that both of them will struggle in their relationship as they get caught up in a series of battles between Na'vi and the humans.  

"Avatar 2" director James Cameron recently teased that the film will also feature the adventure of Jake Sully and Neytiri as they move beyond their lives in the forest to explore the water territories of Pandora, where they will go underwater and meet new characters of their kind.  

According to Movie News Guide, a special technology has been used to film arresting scenes in "Challenger Deep," which is known as the deepest part of the Mariana Trench.

In an interview, producer Landau said: "WETA is working out underwater performance capture for underwater scenes. It's going to be like Floating Mountains in the first movie."

The new release date for "Avatar 2" has not been announced yet, but it has been confirmed that actress Miles Quaritch will reprise as the main antagonist in the film.