I think Emma's right about why the Hulk wouldn't come out. Also, I think you might be right about Tony's ultimate fate, although I suspect Steve will just feel too traumatized and weary after all this, and will give up the mantle to Sam voluntarily. I had a suspicion going in, influenced by knowing comics cannon, that resurrections and the reboot of the Marvelverse to give us the next generation of heroes, would come as it does in comics by Wanda losing her shit after Vision's death. She lashes out with her powers and actually re-writes reality and creates an alternate universe; she's crazy powerful like that. So I was surprised when the finger-snapping got her, too. I guess we're going a different way. Now I kind of think it will be Thanos himself who gets talked into undoing what he's done.