... I'd say Feige just wants a new Spidey in Cap 3 or whatever the Marvel film is, and he wants control over who that new guy is, so the arrangement is based on that.
All the other stuff-- Venom, Daily Bugle, Black Cat, Spidey villains, etc-- I doubt he tries to involve. He'll keep it nice and simple: use the flagship character when he deems it appropriate for the Marvel stuff, not pay attention to most of the Sony stuff.
Now, some are theorizing Feige wouldn't even dare make this deal unless he really wanted to be hands-on with all this. Which seems consistent with what we know about him... except I struggle to reconcile that theory with the fact that, if Feige works really hard on the Sony film, Sony gets the box office profits, not Marvel. I feel like his crosshairs will be focused far more on Phase 3 and beyond to sweat the Spidey solo venture or further incorporation of other characters too much.