The CGI acceptance speech for Best Character at last weekend's VGAs has got the rumour mill turning - is Rocksteady working on Batman: Arkham World?

In the CGI sequence The Joker held up a script titled "Batman: Arkham World" before saying "Whoops! Spoilers."

What's not clear is whether or not The Joker's intentional slip up was supposed to tease Rocksteady's next project or if the studio was simply having a joke with the audience.

In addition to picking up the Best Character Award, Arkham City also took home Best Xbox 360 Game, Best Action/Adventure Game and Best Adapted Video Game awards.