The "RoboCop" revival will have to go on without Neill Blomkamp.

The "District 9" and "Chappie" direct had been attached to a sequel to the 1987 original, but has left the project due to scheduling issues.

Original writers Ed Neumeier and Michael Miner wrote a sequel script to their 1987 film. "Robocop" director Paul Verhoeven was reportedly not interested, but Blomkamp took up the mantle.

But on Twitter, Blomkamp revealed that he has exited the project to focus on a "new horror/thriller." And unfortunately, MGM wasn't willing to wait for him:

The original "Robocop" starred Peter Weller as a mortally injured police officer whose life is saved when he's turned into a half-cyborg.  RoboCop fought crime in Detroit, though he was also plagued by memories of his previous married life.

It was followed by two unmemorable sequels and then a reboot in 2014 with director Jose Padilla and star Joel Kinnaman. It didn't catch on with audiences in the U.S. (though it did make $240 worldwide and performed well in China).

When he first joined the sequel project, Blomkamp told Deadline that the story of "RoboCop" had a huge effect on his childhood and now what really resonates is the theme of "identity, and the search for identity."

He added, "What draws me now is someone searching for their lost identity, taken away at the hands of people who are benefiting from it, and seeing his memory jogged by events. That is most captivating."