Mere strands of webbing tie the MCU and Sony's Spider-Man cinematic universe together, and a small string of connective tissue will apparently be affixed to Spider-Man: Across the Spider-Verse. Just remember that Spider-Verse isn't classified as an upcoming Marvel movie — it isn't from Marvel Studios, nor is it in the Marvel Cinematic Universe.
So far, the two worlds have 'met' in the Tom Holland Spider-Man movies (oh, and that Venom 2 post-credits scene that seemed like it could have been something). But, interestingly enough, the new Spider-Verse film's director revealed that there will be another wink and a nudge.
