Nah. I don't really see people losing their minds over what they've seen like I did with the U4 demo.
In fact, I actually pre-ordered God of War and I'm not even that excited to play it. I'm sure it'll be a great and emotional experience but something is missing.
To be fair, Cory Barlog has fought to ensure very little of GoW was shown. He said he is adamant about nothing being spoiled and described himself as paranoid when it comes to this sort of thing. That’s why it feels like we’ve seen (and know) so little about this game.
EDIT: Here’s the quote:
I know there are a lot of people who are out there saying, 'It's totally different. They're changing a lot of things. Hashtag Not My God Of War. Hashtag Cancel My Pre-Order,'" Barlog said. "But I think a lot of people have to play it."
He added: "We've been very restrictive of the information and what we're showing visually, and part of that is my paranoia. I want people to experience this game as a whole. Everybody who made this game--or a good portion of this team--has been a part of God of War from the very beginning. Nothing has changed cynically or under pressure or just willy-nilly. All of us put a lot of heart and soul into this game, and the DNA of what this franchise is still pumps through the blood of this game."