‘Joker’ Sequel Arriving in 2024 The release date for the “Joker” sequel has been announced. “Joker: Folie a Deux” will be out on October 4, 2024. Joaquin Phoenix will return for this project. Although it hasn’t been confirmed, there are reports that Lady Gaga will be cast to play Harley Quinn. Do you think Gaga would be good for the role?