Plenty of evidence to support he’s still alive.
-If you go up the stairs into the hallway, and then back in that room, Hunk’s body is gone. There are also blood droplets in his place as if he got up and walked away. This is further proved to be intentional when you play Insanity, and there are more soldiers that show up - as you’d expect, Hunk’s body is the only one to vanish, and again the blood droplets look like he got back up.
-Hunk’s body is the only defeated enemy to not leave behind a pool of blood, the only boss to have his body disappear, and he is the only boss to not get a death cutscene.
- Leon, Grace, and Emily are the survivors of the central plot, which would make Hunk… the Fourth Survivor.
-There is DLC on the way, and Hunk got a whole new design and I doubt they brought Keith David Silverstein back just to voice lines for a single boss fight. My guess, and a lot of other fans guesses, is that we are going to get another Fourth Survivor mini game where Hunk is wounded from his neck wound with similar game mechanics to Leon being sick, and he’ll have to get a sample of Elpis to cure his infection and fight his way through the BOW overrun ARK facility to escape and get proper medical attention - OR they’ll reveal that Hunk has some kind of virus like Wesker that allows him to heal/be more durable, and then we still get to play as him escaping the BOW overrun ARK facility and escape.
Either way, Hunk definitely isn’t dead given the evidence and that he’s a fan favorite in a Capcom game. Bet we also get a Mercenaries mode where the playable characters are Leon, Hunk, Zeno, and maybe even Chris’ team.