Peacemaker was one of the rare projects that was not shelved by the new DC leadership. 

James Gunn, who is one of the heads of the studio, explains this in an interview with Rotten Tomatoes.

"Peacemaker was always in a weird place. People say he's a part of the DCEU, but he wasn't really," the filmmaker said.

"He was a part of this in-between universe of DC when there was nobody really making sure everything was connected, and at a time when they were going to rewrite everything with The Flash," he shared.

This helped them to give a free hand in telling the Peacemaker story, James said.

"We were kind of able to do whatever we wanted. We had that brash ending, which I loved. It was one of my favorite things in the whole season, but it just didn't fit in with the DCU," he concluded.