Presumably – at The Game Awards 2023 event.
Rockstar Games announced the upcoming debut trailer for Grand Theft Auto VI on social networks. It is reported that the game will be presented in early December – which coincides with the timing of The Game Awards 2023, which usually features high-profile announcements and premieres. But it is possible that Rockstar will release a trailer separately from the event.
According to rumors, GTA 6 will be released at the end of 2024 or in 2025. The previous part of the series, Grand Theft Auto V, was released in September 2013 on PS3 and Xbox 360, and was later ported to PC, PS5 and Xbox Series.