One of Guillermo del Toro's many gestating projects is the 'Dark Universe' project detailing the darker characters from the DC Universe. Though the film started out as a rumor, Del Toro liked the idea enough to make it a reality. Speaking with Total Film, Del Toro says the film is on the right track.
"I am going to be presenting my storyline to DC and Warners of where I want to take this universe. We do have a writer, but until that is firmed up, I have to keep it a secret. I hope it happens."
"It's going really really well. It's like meeting old friends. I grew up with Demon Etrigan, with Swamp Thing, with Deadman, so these are characters that are near and dear to my heart. I'd love to use the origins that are proper to each character. I love the idea of Jason Blood as a paladin and a knight…. I love the entire Constantine mythology, the Dead Man mythology, the Alex Holland Swamp Thing mythology. These are really rich things to well, and to dig."
In their article, they refer to the film as being titled 'Justice League Dark' (sharing the name with the current comic book series), but this has yet to be confirmed.
The roster for the film's team is said to include Swamp Thing, The Demon, John Constantine, Deadman, The Spectre and the father/daughter pair of Zatara and Zatanna.