Harley Quinn and Joker film: In July 2017, an untitled film centered around Harley Quinn and the Joker was announced to be in development with the working title Harley Quinn vs The Joker, scheduled to begin production after The Suicide Squad.
Film Harley Quinn and Joker Tanpa Judul: Pada bulan Juli 2017, sebuah film tanpa judul yang berpusat di sekitar Harley Quinn dan Joker diumumkan dalam pengembangan dengan judul kerja Harley Quinn vs The Joker, dijadwalkan memulai produksi setelah The Suicide Squad.