I dunno. Maybe? Tom Holland might just be there to do a cameo or an end-scene teaser. I mostly want to mention one thing, though: contra GeekTyrant, I don’t particularly think that Sony cares overmuch if having their Spider-Man show up in their movie confuses people who watch the MCU. I mean, seriously: it’s not going to make anybody not go to see future Spider-Man films, future Venom films, or future MCU films.
Personally, I love superhero flicks, but I consider the level of half-assed continuity that we have now in the various shared universes to be above what we might have reasonably expected.