Gaia Girace and Margherita Mazzucco officially confirmed to stay for the entire new season! Daniele Luchetti interview.
https://variety.com/2021/tv/directors/my-brilliant-friend-season-3-director-daniele-luchetti-1234952331/?fbclid=IwAR35Vr_OMEMH9hJUfeO5QtLvnDAafdEzYZ0si7mjiXkzMTOuq3C_GDuzlrw
Great interview with the new showrunner Daniele Luchetti. He confirms Gaia and Margherita for the entire season and declares that the new season could come out in Late 2021 or Early 2022,it depends from how much time he needs to work on the editing and probably also from HBO and Rai choices to when to put it on air. By the way filming will end in September.