The Fermi paradox applies here: if they are working on even more games, where are those games?
Other than the already released ones, they are being developed because AAA are made in 5-9 years, not in 3 months.
In the case of ND they released TLOU2, TLOUP1, Uncharted LoT, TLOU2R, started TLOU Online in 2019 but cancelled it. And as we know started a SP game around 2021 and another in H1 2023, so it's too early to show them.
SSM released GoWR2 in 2022 and Valhalla in 2023. So the next GoW is years away from being shown. They may also be working in the Cory new IP since late 2018/early 2019, which could be shown and released at an moment.
Insomniac released Spider-Man 2 in 2023, it's working on Wolverine (2026), Venom (2027, but maybe 2025) and Spider-Man 3 (2028).
Polyphony released GT7 in 2022, GT7VR in 2023, is releasing content for GT7 and working in minimum GT8, which obviously it's too early to show.
Guerrilla released HFW in 2022 and CoM in 2023. They hired a former Killzone 2 MP director to direct Horizon Online in 2018, so the game could be shown this or next year, which could be the same Horizon game -or not- being (co?) developed at NCSoft for mobile and PC. Since they shipped HFW they are also working in Horizon 3, which obviously it's too early to be shown.
If I had to bet out of all these studios the next game to be shown, and very likely this year, would be Cory's IP (if it ended being pitched and greenlighted) and probably later the Horizon MP game.