yeah, they're pretty cool. DC pretty much goes with the comics and Marvel is based on the Avengers movie, Ultimate Spider-Man, and comic Wolverine. I wonder if they'll branch out to other Marvel and DC characters like the other Marvel films, comics, DC films and this may be a long shot, but inFamous DC comics (based on the PS3 game)
Marvel and DC have signed on with companies like Lego before. Marvel, through Spider-Man 3, Iron Man, and now Mavel as a whole have signed on with Mega Bloks, and both Marvel and DC signed on with Diamon Select's Minimates, so I'm guessing Lego was just the next step.