HOLD. THE. PHONE. Did Joker just tease something called Batman: Arkham World? He may have.
Accepting an award as Character of the Year at the awards for Batman: Arkham City, the villain - aka Mark Hamil - held up a script titled "Batman: Arkham World," before adding: "Woops. Spoilers."
You should probably take this at face value as a probable tease: Rocksteady unveiled an Arkham Asylum sequel, which turned out to be Arkham City, at the VGAs two years ago.
We'll email Warner on Monday and see what they say.