User blog comment:Ultimate Heatblast/Wonder Girl and Superboy/@comment-5324323-20120729182848/@comment-5324323-20120729191511

The (spoiler-ific) promotional info put out by Cartooon Network that gives a little backstory for all of the 'freshmen.' Though, to be honest, it might not be accurate if they didn't consult the producers. We'll have to wait and see.