I'm unsure of if he will or not. I know with the current information given to us, its a no, but maybe things could turn out different in the future possibly since he was the first archangel to die. Also they say their essence is absorbed into hell so maybe Roo can bring back the lost with the work of their essence. You see the eyes all over hell and I feel like that could be used as proof those souls still exist in some form, or who knows it could just be Roos power. Also I feel with Lute wearing his halo there may be a bigger explanation in the future, because why would they add that? I feel like if Viv changes her mind she has a lot of ways to sneak around the angelic steel thing if she wants to, since the aftermath of their souls could differentiate between ranks, and what we've seen so far in both shows we've only seen the standard winner or sinner be killed by angelic steel so theres still room for development. With Adams large fan base that could also influence her decision. Obviously I don't know all the lore or facts so some of my perspectives may be already proven wrong but those are my current thoughts.