[Update] Sony has now made God of War: Ascension official. In addition to the trailer we've already seen, Sony will be live-streaming an "event" on April 30th at 8AM PDT, that promises to give you a "glimpse of what's in store for God of War: Ascension".
[Original Story] Although we had strong suspicions, and a little bit of evidence, that tomorrow's big Sony reveal was related to God of War, it's now been confirmed thanks to everyone's favorite online retailer.
Amazon.com has pre-emptively listed God of War: Ascension for sale, letting Sony's vengeful cat out of the bag early. It's not just the game listing, either—there's a teaser trailer for the game, too.
The trailer suggests that the game takes place before the main God of War series, and perhaps before the PSP game, Ghost of Sparta, which was also a prequel. See for yourself.
Amazon better hope that Sony is more forgiving than Kratos is, or else there's going to be some brutally murdered executives.