Rumors have been swirling about an expanded superhero cast in the follow-up to 2008's Lego Batman, with the Amazing Amazon and the Man of Steel reportedly joining the toy-riffic version of the Dark Knight. Ads inside of new Lego toys appear to confirm that, according to MCVUK. Lego's launching a new Super Heroes line with characters from both Marvel and DC, and inserts in the boxes of these new toys tease a sequel to Lego Batman. With Superman, Green Lantern and Wonder Woman pictured in these inserts, it's probable that villains like Lex Luthor, Sinestro and maybe Cheetah may show up to bedevil the Lego do-gooders when LB2 shows up. No official word from Warner Bros. Games or Traveler's Tales has been released yet, but we'll update as we learn more.