After just a few days of announcing that Batman: Arkham Origins would be having a multiplayer, Warner Bro Games has already begun the Beta process, which is due to start next week.
Note that the email says “exclusive early Beta test”, which may indicate that they do plan on doing other Betas before the game releases this October. The invites are only being sent out to those who have a Warner Bro ID, which you can register for one here.
The beta is set to start August 7th and run till August 14th, and will be available on the PS3 (North America and Europe) and the Xbox 360. For those who register for a beta code do note that its first come first serve.
Batman: Arkham Origins is set to release October 25th on the PS3, Xbox 360, Wii U, and PC.