I've got a feeling that unless this movie is a surprise mega hit the FF will be going home to Marvel. I do think it will perform around Amazing Spider-Man level, $400m or so worldwide. Which isn't a slouch. but probably won't justify $200m+ budget these movies cost to make. Not to mention putting a sequel on an unstable director who would probably be even more difficult the second time around. Marvel would have to give up something major no doubt, either a bucket load of cash or maybe some kind of a deal.that loosens up merchandising rights on X-Men since that isn't going anywhere. That way classic FF could show up in Infinity War and silver Surfer could show up in GotG.