We actually got two Hulk movies. They're even given a nod to be in cannon with the MCU ("The last time I was in New York I accidentally broke Harlem"). Hulk will feature prominently in Ragnarok, and there have been rumors about allowing Mark Ruffalo to headline his own picture. (That said, Universal, of all people, has some sort of rights to a Hulk film.)
I think we'd be more likely to get a Black Widow film, though.
I think we'd be more likely to get a Black Widow film, though.