User blog comment:LLight/WonderCon: Young Justice Season 2's Alien Invasion/@comment-4955527-20120325003917/@comment-432124-20120325022214

Are you just including the bad guys? 'Cause if not, then my guesses are Lobo (who was shown in the trailer), Starfire, and (hopefully) Supergirl.

As for Ma'alefa'ak being M'gann's father, there's a possibility since they haven't said that she's a full White Martian, which gives the possibility of her being a half-Green, half-White Martian. I actually hope that that's the case 'cause that would bring in a lot of drama and make her fit into the Team better, if you know what I mean.