“We accelerated the story to get to the hope and optimism a little faster,” said Mr. Berg.
“Justice League” will also directly address Batman’s extreme actions in the last movie, such as torturing criminals and nearly killing the man of steel, rather than accept them as par for the course. And it’s expected to have fewer of Mr. Snyder’s controversial flourishes, like the dream sequences in “Batman v Superman,” in favor of focusing more tightly on the plot, people close to the picture said.
Plans to make “Justice League” a multipart story that would continue in a 2019 sequel also were abandoned.
“Justice League” will come out in November 2017, following next June’s “Wonder Woman.” Mr. Johns did a rewrite of the script for the superheroine’s origin story, working with director Patty Jenkins, and is writing a solo Batman movie to be directed by Mr. Affleck. It will feature Joe Manganiello, from “Magic Mike” and “True Blood,” as nemesis Deathstroke and could come as early as 2018, though Warner has not set a release date.