THR is reporting Robbie will reprise her role as DC villainess Harley Quinn. David Ayer is back in the business of DC comic villains. The filmmaker, who directed Warner Bros.’ all-bad guy comic book movie Suicide Squad, is reuniting with that film’s star, Margot Robbie , for Gotham City Sirens, a feature project that will showcase the top female villains from the DC stable. Ayer will direct and produce the project with Robbie reprising her role as Harley Quinn, the part-time girlfriend of the Joker who is currently DC's most popular female character. Robbie also is executive producing. Sirens was a recent comic series from DC that focused on the popular villainesses from Batman’s rogue gallery. Among them were Quinn; Catwoman, Batman’s sometime love interest; and Poison Ivy, who uses plants and their toxins to get what she wants. Geneva Robertson-Dworet, a top female writer in the action sphere who also has penned scripts for the Tomb Raider remake and Warners'