https://wccftech.com/spider-man-remastered-ps5-crossgen-saves-standalone-release/

Last week Sony announced those who purchase Spider-Man: Miles Morales Ultimate Edition for PS5 will also get Marvel’s Spider-Man: Remastered, but some questions about the revival of the 2018 game remained. Thankfully, Insomniac Games have taken to Twitter over the past few days to answer some of those questions and concerns.

Sony has yet to clarify whether Marvel's Spider-Man will support any sort of “Smart Delivery” upgrade scheme, but for now, it seems like you’ll need to buy Spider-Man: Miles Morales Ultimate Edition on PS4 or PS5 to play the next-gen version of the game. That said, can we at least expect our PS4 save files to carry over the PS5? Sadly, no dice, says Insomniac.