Star Wars fans have been treated to another glimpse of anticipated blockbuster The Force Awakens with a goosebump-inducing 15-second teaser clip.

The video posted to the Star Wars Instagram page is packed full of previously unseen lightsabers and sword fights, and has sparked new debate about the movie's plot line.

The J.J. Abrams film is still shrouded in secrecy, but will welcome the addition of several new characters including a masked villain, Kylo Ren, and former stormtrooper, Finn.

In the brief clip, the two men are shown squaring off in a forest, with Ren in possession of a totally new, multipronged lightsaber.

Finn is also seen wielding a blue lightsaber which many in the Star Wars community are speculating could be the long-lost sword which belonged to Luke Skywalker.

The clip also contains a glimpse at the assembled First Order and new female protagonist Rey.

The Force Awakens will be the first in a new trilogy and is expected to break many existing box office records when it hits cinemas in December.

According to Deadline, the film is expected to make a record $US615 million worldwide over its first weekend.

The current record was set by Colin Trevorrow's Jurassic World which made $524 worldwide on its first weekend in June, and $1 billion within its first fortnight.

Trevorrow will direct 2019's Star Wars: Episode IX, the final film in the upcoming trilogy.

Speaking to Empire this week, Abrams confirmed that Ren, who belongs to mysterious group Knights of Ren, is not a Sith like Darth Vader.

"Could The First Order exist as a group that actually admired The Empire?" the director asked.

"Could the work of The Empire be seen as unfulfilled? And could Vader be a martyr? Could there be a need to see through what didn't get done?"

Star Wars fans are sure to be counting down the days until the new trilogy kicks-off in Australia on December 17.