I wonder, if Spidey and the X-men are controlled by another company, if their villains are allowed to cross over. I heard they were making a Black Panther movie and Kraven and the Rhino would be right at home in it.
In any movie they could show Venom from a distance and it would look and move like Spidey. Apocolyse and Mr. Sinister, or any other villain could drop by for a cameo beat down. Juggernaut fights the Hulk occasionally.
The villains aren't tied down.