https://www.polygon.com/2017/6/20/15839880/wonder-woman-sequel-patty-jenkins
DC Films co-head Geoff Johns said:
You would be silly not to analyze how a movie was received — what went right and what went wrong on the making of a movie. On Suicide Squad, the movie did incredibly well commercially. It didn’t work narratively. You had some great casting and some great characterizations, but where the story fell down was on narrative, on plot. We could do better. Batman v Superman was tonally dark. People didn’t respond to that.
Someone out there is listening.