There was one thing that the Devil Hulk killed the "Secret Empire" Hulk persona, and of course Leader "killed" Devil Hulk. Not looking great for the Green Scar either if Leader overrode his persona.
Of course it remains to be seen whether they're really "dead" or something else. Leader is using Bruce and Devil's mindscape forms for....something.....in the below all.
I'm kind of wonder if Joe and Savage/big guy might turn to the Professor persona for help, he's been mentioned a few times and was on one of the Alex Ross covers so presumably he's still in there.