User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-5072738-20120901192105

My theory: The Lights' new partner is Deathstroke. If he is making an appearance in the series then perheps we have already seen him. Think about it: In the episode "Salvage" at the very end when Sportsmaster pats the silhouette and calls him "partner"! The outline had an uncanny resemblence to Deathstroke. (just sayin)