It appears as if Sony's teased image will be a new God of War game. As spotted by an astute NeoGAF user, the name of the teaser image that was posted a few days ago is "ps_gow-teaser_12371_hp.swf".
The "gow", of course, short for God of War.
What it doesn't reveal, however, is if this will be God of War IV for the PS3 or a new God of War game for the PlayStation Vita.
Sony originally posted the image on the PlayStation Facebook page. The line "Will vengeance bring redemption?" immediately sparked conversation of a new God of War game. We aren't 100% certain, but I'd bet my job that this is what it'll be.
We should find out more tomorrow as the original image also included the date 4/19/12. Check back tomorrow to find out more!