Dark Knight and Man of Steel screenwriter David Goyer has been developing a TV series based on DC Comics' Hellblazer, and NBC just ordered a pilot for it.
Warner Bros. TV will develop the series, which will be called Constantine and will follow the character John Constantine, who is thrown into a position where he must defend humanity from the gathering forces of darkness. At the same time, he's haunted by the sins of his past.
This is the character that was played by Keanu Reeves in the movie adaptation of the same name. It's a pretty badass character, that I think will make for a really cool series. I don't know what this means for Guillermo del Toro's Justice League Dark film project, as Constantine would have been a main character in the story.
I hope this doesn't mean we won't be seeing Del Toro's movie, because if I had to chose between the two, I'd pick Del Toro over Goyer any day. The pilot episode was written by Daniel Cerone from Dexter, who will also produce the series alongside Goyer.