The emulated PS2 version of Siren was released for PS4, but only in the NA and EU stores. Maybe they are releasing it now in Asia. The korean rating uses a copy pasted description of the original one, if it would be a remake/remaster would be at least slightly different.
2021 (covid) TGS 30/9, PS Show 9/9
2022 TGS 15/9, SoP 13/9
2023 TGS 21/9, SoP 15/9
2024 TGS 26/9, SoP should be next week
Next 2 1P announcements should be Intrestellar: The Heretic Prophet (trademarked in February, likely to be Cory's new IP) and Horizon Online (hired the director in Feb 2018).
They also have 1st/2nd party stuff announced for the next half a year aprox with no release date.