I'll be surprised if there's many reviews out there which are super negative. I think back to RE5 and that game was really really really hated. Listen to any press podcast at the time and you'd hear at least 2-3 voices who said the game was complete crap. And that didn't stop the game from getting 86% review average.
I think most companies will be handing out the review to someone who's actually excited about the game and more likely to enjoy it. And even with how many people are hating on it, I'll be surprised if the average person would have a negative time with the game if they sit down and play it through with a friend.
I think the biggest question is if the game will live up to Capcom's sales expectations. I can't remember the exact number, but I think it was 7 or 8 million. Which is several more millions than what RE5 sold.
Hopefully it'll work out as I wouldn't mind Capcom continuing down this road. People asking for survival horror will still rant, but then again, RE series was never good at horror (maybe REmake being the sole exception) and it's been an action series for a long time now.
I've come to not care about reviews as much anymore, especially about hyped games, or the opposite, hated games. There are so many flaws with the review system you see if you pay attention for long enough, so many reviewers and sites gave RE5 praise but then when gamer reception comes in they turn around and act like they felt that way too.
I have much more respect for critics who, like gamers, form their own opinions and stick to it, no matter what the verdict. I actually had fun with RE5, it wasn't my particular favorite RE game or anything and I did think it was a step-down from RE4, but I did enjoy it as a co-op game.
I think reception will be mixed both because of how the game is structured, and when this game is coming out. I hate to type this but it's the truth, reviews are heavily swayed by the time they come out in. This game is coming out after RE5 and Operation Raccoon City, and when hating on Capcom is the 'popular' thing to do. I think all of these factors may equal more negative reviews mixed with the good.
But that's not to say I don't think this game doesn't deserve negative reviews. I actually think, based on preference and design, the game deserves reviews all over the place. I say this again as someone who loves RE6. It has flaws, and I can see why others may not enjoy it as much as I. But I think a lot of reviews may give scores out to the game for the wrong reasons. I may just be over-thinking this all.
What I can say is that the Single Player is much, MUCH better than RE5... But so is the co-op from what I played. I agree, the small bit of this game I played co-op was a blast. While this game has flaws, I guess I like it a lot more than Resident Evil 5 as I enjoy it both as a single player game and as a co-op game much more than I did RE5, even if I would say RE5 was a much more balanced game. This is a lot more original, though.