Sony's got a lot of projects in the works.
It doesn't mean they'll be made. One could easily write a book on the revolving plans pre-Homecoming.
Post-Homecoming so far rumors have been: Venom, Silver and Black, Morbius, Nightwatch, Mysterio/Kraven, and Silk. Obviously, Venom's the only one they've gone through with and Mysterio of course is not happening with or without Kraven as he's in "Far from Home".
Sony's just trying to capitalize from a business angle. If I picked characters associated with the Spider-Man comic as a studio, I could probably think of some with more story potential though... They're looking for something visual and attention grabbing for the general audience pretty much.
Most of these plans probably won't happen but I oddly do want a stand-alone Silver Sable and the Wildpack movie though (
not buddy gal-pal flick). That would be awesome and is something I've actually thought would make a good stand-alone movie out of since reading Spider-Man comics back in the day. I mean she's not even really in Spider-Man's league as far as superpowers go and is sort of like Black Widow compared to the other Avengers in a way whenever she shows up. She needs her own world and movie like the Punisher has gotten. If Marvel Studio's wishes to do that then great but I'm open to a separate venture compared to nothing on this.
Besides that, R-Rated creature feature movies could be fun I suppose. Might as well go crazy on this if decide to just let rights expire to Spider-Man, as they'll have to play more carefully with the Valiant Comics characters...
Valiant Comics should be getting more of a push by Sony if they really do want to get a shared universe going. These movies won't come with a riot attached to them from MCU fans hanging out at forums as much or perhaps negative publicity from being separate from Marvel Studio's as they have grown pretty popular as of late and any flames that can be fanned makes for a good story.