Parece que esse é o agente Brock Rumlow, do S.H.I.L. De acordo com Frank Grillo, que joga com ele :
"Very early on the [film's directors] Russos said, 'Look, this is an origin film for this character. We're gonna discover who this is and this is a big movie with a lot of moving parts, but we're gonna discover you in this film and, you know, here's the information about who Brock Rumlow turns into and blah, blah, blah.' And so we've had multiple discussions about what comes after that, that thing. So, you know, it's obvious Rumlow is covered in rubble and burned to [a] crisp at the end, but you see he's still there. They don't do that for no reason."
Então, isso parece ser uma configuração para o alter-ego de Rumlow Crossbones , um capanga da Red Skull envolvido no assassinato do Capitão América . Este site é um dos vários que suportam o teoria (role para baixo cerca de 2/3 do caminho).