The Ghost of Tsushima PS5 compatibility has been confirmed. People will be able to carry it over, use their old saves, and use "game boost."
Ghost of Tsushima Will Be Playable on PS5 with 60FPS via Game Boost - IGN
Sony Announced Bungie Will Be Its Next Acquisition - Siliconera
PS4 to PS5: All Games with Confirmed Free Upgrades
Ghost of Tsushima - PS4 & PS5
Ghost of Tsushima Will Be Playable on PS5 with 60FPS via Game Boost - IGN
Ghost of Tsushima PS5 Standard Disc Skin Sticker Decal Cover for PlayStation 5 Console and 2 Controllers PS5 Disk Skin Vinyl
Latest - Siliconera
Ghost of Tsushima (PS5) Backwards Compatibility Gameplay [4K 60FPS]
Ghost of Tsushima - PS4 & PS5
All posts - Siliconera
Ghost of Tsushima Will Be Playable on PS5 with 60FPS via Game Boost - IGN
Ghost of Tsushima (PS5) Backwards Compatibility Gameplay [4K 60FPS]
Ghost of Tsushima (PS5) Backwards Compatibility Gameplay [4K 60FPS]