The video shows exactly what it says on the tin, a bunch of rats on a street. The sign “Cherry Street” is also visible.
Some mentioned that it could be a teaser for the TV series “The Strain,” as a clip showcasing rats and advertising the show has been aired during The Walking Dead, but the clip itself is different.
You can see it below, courtesy of NeoGAF user BananaWithGuns.
Whether it’s really teasing The Strain or something else, we have no way to know for now, but we’ll keep you updated if anything else will be unveiled.
Update: NeoGAF user Ekim found out a reference to The Strain on the Xbox 360 dashboard’s xml source, pointing to the fact that the video is indeed a teaser for the show. Interestingly enough, it also references something named Taxi 15, but that could just be an arbitrary file name.