Mortal Kombat reboot?

Just saw this on CBR and Kotaku. Not sure what this is, but it looks to be either a re-imagining of the Mortal Kombat movie franchise or a trailer for a video game. I'm thinking it's for the movie. IMDB has it listed for a 2013 release, which is still a long ways off. Doesn't even list it as being in production yet.

It is very different from the 2 previous movies... very dark and set much more in a real world environment. Characters in the clip shown are: Jacks Briggs, Sonya Blade, Scorpion, Reptile, Baraka, Johnny Cage and Sub Zero.

I only recognize Michael Jai White (Spawn) as Jacks and Jeri Ryan (Seven of Nine in Star Trek: Voyager) as Sonya. The other actors don't look familiar to me. This could be just a demo reel and the actors, characters and storyline could change drastically in the end.