Not that it really matters (as evidenced most recently by Thor: Ragnarok), but I wonder why Universal will always own the release rights to any future standalone Hulk film.
Did Marvel completely sell them off at some point?
Is it different from the situation with F4 where Fox needs to make another movie every several years?
I found this article on Hulk that should help:
Looks like Universal lost the character by not making Ang Lee’s Hulk 2, but they managed to keep the right of first refusal for distribution, which means Disney would share some profits with Universal on MCU Hulk standalone movies.
As opposed to Fox, which keeps making F4 movies to keep the characters.