Tom Holland's Spider-Man has so far remained separate from Sony's adjacent 'Universe of Marvel Characters', but he almost made it into a different Sony Spidey film. According to Holland himself, at one point he had a planned cameo in Spider-Man: Into the Spider-Verse, but it never came to fruition.
"At one point I was supposed to be in it," Holland told UK entertainment outlet JOE. "There was going to be another Peter Parker… There was like a scene in a train station or something, and it was going to be like an Easter egg. I was going to walk through the background and say like 'Hey, kid' or something. Never happened. Heartbroken."
In Into the Spider-Verse, several versions of Spider-Man, including an analog of the Peter Parker of Sam Raimi's original big screen Spider-Man continuity, come together across the Multiverse to mentor Miles Morales and stop a inter-dimensional threat.
Given the Multiverse-centric story of Into the Spider-Verse, a cameo from Holland might have had some big ramifications for the also Multiverse-centric Spider-Man: Far From Home, which brings that concept to the forefront of the Marvel Cinematic Universe.
Could there be some connection between the two Multiverse ideas? Perhaps the answer will become clear when Spider-Man: Far From Home hits North American theaters on July 2.