I'm going to say deny, not that the series isn't a little stale, but for me milking it is pushing out constant yearly releases. God of War hasn't had a console title in 3 years. I think it's doing fine. Plus (and I can't believe I'm saying this) The multiplayer looks like a good addition.
Go look at the first God of War Ascension 30 minutes, it solos games like DmC from the intro alone. The intro alone has a budget bigger than most action games. I don't think its milked if Ascension is going to be a good game, even though its very short.
|--|o\/o|-|~ Can't let you do that, Star Fox!~~~| |--\_O/--|~~~~~~~~~~~~~~~~~~~~~~~~|
They have a lot of ideas to pull from and they've always done some very creative things. Although I will admit the games start to lose steam near the end, but it's a fun ride. They also add a lot in each entry which I enjoy. I say deny.
PSN-DSKEmilio and GamerTag-DSKEmmanuel my LBP2 levels~ http://lbp.me/u/DSKEmilio/levels