Sony says there aren’t any big PS5 announcements during the State of Play, but checks on third-party and independent titles that were shown in June. Therefore, the 40-minute state of play will focus on PS4 and PS VR games.
The event will not have any updates from the PlayStation Studio developers and no release date for the PS5, unfortunately.
40+ minutes and PS4 games from third party developers, if we’re lucky we might see something from FromSoftware about the Elden’s Ring, but I wouldn’t hope.
Source: PS Blog