At this event, it's expected that Sony will unleash pretty much an avalanche of stuff on gamers that will include a "console overview trailer", a "backwards compatibility trailer", "reveal trailer", and then a "PlayStation 5 trailer".
This includes Call of Duty: Black Ops Vietnam (and I guess, not Call of Duty: Black Ops Cold War), Spider-Man: Miles Moralis, Ratchet & Clank: Rift Apart -- and even an Overwatch 2 campaign gameplay trailer.