I really loved the first GoW and I liked the second one as well, even if it was IMO not as good as the first game in the series... But if I´m honest with myself: the only reason I am excited about this game is because of the Story. I don`t know why, but for me GoWII somehow didn`t add something to the gameplay, that could enhance the experience.
But I saw Kratos ran on the wall like the prince in PoP... So maybe we`ll see some acrobatics in this game. Something like PoP with the combat-style of GoW and some kick ass environments like in GoWI+II and I might could get really excited about this game!