User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-5159732-20120806212401/@comment-99.55.67.73-20120814025542

Sorry, what I read before said Black Beetle. They changed it since then. Still, I still think it's the most likely idea. Young Justice has a knack of turning incomplete or jumbled storylines storylines (like Jackson Hyde's - aka, Kaldur'ahm) and turning them into distilled amazing. Plus, it makes sense that they would incorporate more time travel with another character trying to stop Impulse. Black Beetle is a whole lot of time traveler, and he does kind of look like the villain shown. Coincidences don't happen in the good stories. They just don't.