This might be a dumb poll/thread ha ha, but still, I am curious. Are you interested in how Kratos is going to turn out as a character, or do you feel that at this point he is simply unredeemable? Personally, I think this is the best way to go when bringing him back as the protagonist. Kratos in one and two was one of my favorite characters because I felt he had, even though slight, shown some semblance of remorse for his past actions, and his anger came from being tricked into killing his family, which he loved. In two, he seemed to regret stabbing Athena too.
Despite some of his seemingly careless actions against a couple of human characters in the first (dropping the ship captain down the hydra's throat and the infamous caged Spartan moment), I wasn't deterred from liking him. It wasn't until three where he became one of my least favorite characters and is in part why three was disappointing to me. That said, I had some expectations of where the trilogy might go and end, but didn't go in the direction I was hoping, pretty much starting with two though. The new game looks like it's going in the exact direction I was hoping it'd go in the first place.
When I played the first one and then the second, maybe I was naive, but I was hoping for (albeit perhaps cliche [think Gladiator]) it all to lead to Kratos dying from battle wounds after he achieved his goal and meeting with his wife and daughter in Elysium, not Kratos becoming more and more villainous. I would have liked to see Kratos' character go in the total opposite direction than he did, so I'm glad that the new game seems to be about what I wanted out of it all along anyway. I'm glad too that they brought him back again so they can possibly redeem him.
When you finally play the game, if you do play the game, you should come back on here and say what you think of his character (although, if you plan on giving spoilers, use the spoiler tag).