A note about the voice-acting: Reports about Arkham series stalwart Kevin Conroy's involvement or lack thereof have been confusing. Conroy had played Batman in the last two games, but early coverage of the game suggested he was not in Origins. This game's younger Batman will be played by Roger Craig Smith, who played Chris Redfield in recent Resident Evil games, Ezio in Assassin's Creed II/Brotherhood/Revelations, and Sonic the Hedgehog. Mark Hamill won't be the Joker this time. BioShock Infinite's Troy Baker will.
What of Conroy recently saying he's working on a new Arkham game? Either he's talking about a different game or he has a surprise role in this one. A PR rep for the game confirmed the new voice actors for Origins' leads but declined to clarify what Conroy was talking about nor even clarify whether he is in the game at all or not.