This was leaked by Sider.Fun.Backup on instagram, with the caption “The King is back”. This upcoming new Spider-man film called Spider-Man No Way Home will unleash the MCU Multiverse on the big screen this Dec 17. Fans were hearing back a year ago that this will be a Spider-Men film with Tom Holland as the MCU Spider-Man and would fight along with Andrew Garfiled as his Spider-Man from the Mark Mark Webb films and also including Tobey Maguire as his Spider-Man from the Sam Rami films. The Spider-Men were also teased by Jamie Foxx last year with him posting fanart of the Spider-Men ready to fight him, this was after we were all told Jamie Foxx would be back as Electro. Last year Alfred Molina said he is playing Doc Ock in Spider-Man No Way Home from the Rami Movies. We also had a major confirmation that this is all true in the Trailer for the film.
The leaks from good sources say this is all happening back to a year ago too.