God of War IV Teaser Trailer Leaked?

The world is expecting some big announcements at this year's Game Developers Conference. I could run through a handful of the rumours surrounding announcements that could be coming over the next week or so, but at this point it's difficult to pin down the most interesting of the lot. 

4News published the video above, apparently showing a teaser trailer for God of War IV. It certainly seems genuine, but at this point people can put together incredible things in seconds and I probably couldn't tell the difference. Because the sound is a little rough (this recording is taken on a phone or something) 4News also did a transcript:

"Brother. The phoenix has been drinking your blood, full of your anger, your strength, and During her rebirth, she also has let you in life. Now I ask you, what are you going to do … would you leave me here in hell?

"Kratos, wake up, wake up!"