Production details about season 3 of HBO’s ‘Euphoria’ are here. While Euphoria fans will have to wait a bit longer for its third and final season, the show has at least set a production date with the main cast in tow. On Friday, July 12, HBO surprised fans of the hit Sam Levinson drama by announcing that filming for the new season would begin in January, with cast members Zendaya, Sydney Sweeney, Jacob Elordi, Hunter Schafer, Alexa Demie and Maude Apatow expected to return.