David Ayer has been tapped to direct Gotham City Sirens, the Harley Quinn-lead female spinoff announced after Suicide Squad's release. He will produce alongside Margot Robbie who is returning as Harley. Script will be written by Geneva Robertson-Dworet. Unlike Ben Affleck's Batman, this will be fast-tracked towards production.
Gotham City Sirens was a recent comic from DC that showcased the popular female villains of the DCU lead by Harley, Poison Ivy, and Catwoman.