Hmmm, there are many scripted experiences out there. Imagine Call of Duty going Zelda style? o_O
But yeah, it's two different styles. I don't see how today's GoW could have been made Zelda style. Zelda is more immersive, yeah, but because of scripted events in the now present GoW, the story has that "in your face" epicness that a Zelda style game couldn't possibly provide.
Just my two cents.
Random game thought :
Why is Bionic Commando Rearmed 2 getting so much hate? We finally get a real game and they're not even satisfied... I'm starting to hate the gaming community so f****** much...