So I've been watching gameplay of the new Soider-Man 2 game, which got me reading about Knull, the symbiote god. I got the this passage: "Knull and the dying god crash-landed on a desolate planet, where All-Black left the incapacitated Knull for one of the indigenous inhabitants, Gorr.[27][14]." Which made me think back to Love & Thunder and how Gorr and All-Black are already in the MCU now, and the end credits scene for No Way Home, which shows a piece of Venom is left behind after Eddie gets sent back to his own timeline.
So, if they ever do make a fourth MCU Spider-Man movie, I think they could very easily and possibly start some sort of Venom/symbiote invasion storyline, maybe introduce Knull and imply he's coming back and Venom is his herald in a new trilogy. Maybe they could even introduce a new version of Miles? I'd be pretty excited to see a live-action adaptation of his character. Or even Silk?! We've never seen the MCU version of Spidey get bit, so maybe it would be interesting to do a flashback that shows him and Cindy both get bitten or something?