User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-108.89.213.126-20120717182952/@comment-432124-20120717183815

I doubt that if Supergirl shows up, she'll show up with the six accused Leaguers. Those Leaguers are on Rimbor and if she exists on Earth-16, she's likely to still be in her space-ship floating somewhere near Earth.