Updated / Batman: Arkham Asylum follow-up announced

Update: Added the teaser clip above.

Original story: The surprise opening announcement of the 2009 VGAs has turned out to be a sequel to this summer’s surprise hit Batman: Arkham Asylum. Along with a short pre-rendered video starring the Joker and Harley Quinn and narrated by Joker’s voice actor Mark Hamill, an arkhamhasmoved.com url was shown, though it hasn’t been launched yet and just returns a ‘404 not found’ error at the time of writing.

We’re guessing a late 2010 release, but we’re bound to get a press release with more information soon.