I heard about that and saw some of the concept art. It would be really cool if real, because I greatly enjoyed the God of War series. Even when it was 'bad', it was still fun
If they ever need more gods, they could always dive into Egyptian mythology too. Also, if they wanted to be more modern, they could also have him go after the Hindu gods. There's a huge line-up there to be knocked down. But, I feel like they'll stay with ancient religions to avoid hurting anyone's feelings.
Though, I feel like Kratos has no reason to really go after them unless he just wants to go and kill every god out there. I don't think it would be bad having a new God of War protagonist either.