The arrangement between Marvel Studios and Sony Pictures to collaborate on Spider-Man movies is reportedly over, with Sony opting to not renew a deal that would have seen Marvel/Disney take 50% of any future Spider-Man movie profits in exchange for the creative guidance of producer and MCU boss Kevin Feige.
That means Spider-Man is effectively out of the MCU and back into his own solo movie universe overseen solely by Sony.
The Sony-Marvel deal has always been a head-scratcher for fans, right up until last month’s San Diego Comic-Con when fans were left wondering why Marvel didn’t announce a new Spidey film along with the rest of their Phase 4 slate. Given that talks between Marvel and Sony were deteriorating at that time, we now know why Spidey was a no-show at SDCC.
Source: IGN.com Sony Spider-Man MCU Deal Explained