Colin Trverrow's ("Jurassic World") sci-fi script "Metronome" -- which started out as a 2010 spec script called "World War X" -- is getting a rewrite under "Piranha 3DD" scribes Patrick Melton and Marcus Dunstan.

According to The Tracking Board, Trevorrow is remaining on board as a producer for "Metronome," alongside Joel Silver, Aaron Auch and Ethan Erwin of Silver Pictures. Warner Bros. previously had the rights to the feature, with Benderspink to produce.

Trevorrow's "Metronome" tells the story of an orphan that is selected to lead a war over the fate of humanity, using time travel to change the course of history.

It's uncertain if Trevorrow will direct "Metronome," as he has his hands full writing "Jurassic World 2," in addition to writing and directing "Star Wars: Episode IX" for Disney.

"Metronome" hasn't been given a release date.