User blog comment:Ultimate Heatblast/Wonder Girl and Superboy/@comment-5324323-20120729182848/@comment-1038387-20120730063904

I'm pretty sure Weisman said there's the playable characters, and then there's Bumblebee and Lagoon Boy, who were on another mission. This leaves out B21 (likely Cassie) and B22 (Blue Beetle). No word on whether they'll be DLC.