5 million ?? is that official? That would be awesome!
I would be very happy for the developers and Sony. Sony invests the most money / development costs in games for the players (in comparison with microsoft and nintendo in the last 5-6 years) and that's why the success is particularly important. The revenue may be used to develop a new IP and a new God of War game by Santa Monica.
In one video, the "God of War-producer" cry because he is so happy with his team about the game (ratings/sales figures),a developer with a lot of passion :)