According to reports the Superman and Batman attending MMO will see retail this November, as it releases on PlayStation 3 and PC.
It seems quite ambitious seeing as how SOE has yet to launch an MMO on PS3, as their Free Realms should have kicked off sometime last year but is only for PC still. We'll just have to see how things keep shaping up as we approach November.
DC Universe Online lets us create a hero or a villain to fight alongside or with iconic figures like Superman, Batman, Joker, Doomsday and the billions of others in the comic universe. There's likely to be tons showing at this year's E3 event so keep watch.