Sucker Punch's Ghost of Tsushima isn't getting the full next-gen upgrade treatment (at least, not yet), but when the PlayStation 5 launches, people will find that Tsushima is getting a nice boost to performance.
Even though the PS5 was made with an option for mimicking PS4 performance in backward compatibility, Ghost of Tsushima is one PS4 title that will benefit from what Sony is calling PS5's "Game Boost" functionality. With it, people who play Ghost of Tsushima on PS5 will see an extra settings option that PS4 players won't, which Sucker Punch says will "allow frame rates up to 60 FPS." Time will tell if that means we'll see a stable 60 on PS5 or if there are any resolution or quality trade-offs for the frame rate gain.
Sucker Punch is also guaranteeing that players will be able to transfer their saves over from PS4 and continue where they left on PS5. Sony says that game saves from PS4 can be transferred over to PS5 by WiFi or with a LAN cable, and external storage transfers will work as well (as for whether or not cross-gen games support transferring saves between the PS4 and PS5 versions, Sony's leaving that up to the developers).
Ghost of Tsushima will also take advantage of the PS5's new SSD, Sucker Punch confirms. Many games running in backward compatibility should have faster load times thanks to the improved hardware, but results may vary from title to title.
Earlier today, Sony also released a small list of PS4 titles that won't be backward compatible on PS5. For now, there are only ten games on that list, and Sony's still saying that the "overwhelming majority of PS4" games will be playable on its new console.
Next week, Ghost of Tsushima is also receiving a big free content update. Version 1.1 will add a new co-op mode, quality of life improvements, and a New Game+ option for the single-player.