User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-4026406-20120820192647/@comment-432124-20120820195756

Like I said, unless it's a replica of Red Volcano, this can't be Red Volcano because we all saw the original Red Volcano "die" in "Humanity". And I too was thinking that it could be Black Manta (or Kaldur, or a Manta-Man) under the red light.