In their report about the Joker and Harley Quinn movie, which is set to be written and directed by filmmakers John Requa and Glenn Ficarra (Focus), it was revealed that Gotham City Sirens has been “reconceived” as Harley Quinn Vs. the Joker, which seems to be a priority for the studio moving forward.
It was recently revealed that Warner Bros. is developing a DCEU spin-off that will center on Jared Leto’s Joker and Margot Robbie’s Harley Quinn.
Interestingly enough, during San Diego Comic-Con, Warner Bros. firmed up their upcoming slate during their Hall H presentation, and Gotham City Sirens wasn’t included in the lineup.
On the one hand, it’s little surprising that Gotham City Sirens won’t be happening, since it seemed like something Warner Bros. had dumped a lot of time and resources into.