The God of War sequel, also known as God of War: Ragnarok, has likely been delayed. On top of that, there is growing belief it will only be a PS5 exclusive, meaning no new appearance for Kratos on the PS4. A well-known leaker has also stated that there will be a PlayStation 5 exclusive Final Fantasy title revealed soon.
https://www.notebookcheck.net/God-of-War-Ragnarok-likely-delayed-and-not-coming-to-the-PS4-and-Final-Fantasy-PS5-exclusive-incoming-according-to-noted-leaker.540797.0.html