Michael Keaton who is a busy man these days was on the
Jimmy Kimmel Live show last night where he informed Jimmy that he was going to be shooting some Vulture stuff today. He didn't specifically say for what movie this would be for. We know he is going to pop up in the
Spider-Verse Morbius movie as he was shown in the trailer that dropped earlier this month. Since that movie is opening in theaters in just a little over a month I don't think that is what he would be shooting scenes for now. We also don't yet know for sure whether or not Keaton will have some kind of role in the upcoming Spider-Man: No Way Home movie. There has been no indications he will show up there at this point, but you never know.
It's also not clear to me whether Keaton can only appear in Sony based Marvel movies or whether he might be able to also appear in movies such as the upcoming Doctor Strange in the Multiverse of Madness. Only time will tell I guess. For now all we can definitely say we haven't seen the last of Vulture on the big screen.
See where Keaton mentions shooting Vulture scenes in the Kimble interview below at time mark 14:40.