Hideo Kojima is trolling us. There is a large component to this game we have not seen. There are to many people close to Kojima blowin up this game as something revolutionary for what we saw at TGS to be it. I'm expecting MGS2 levels of trolling.
I saw some "early leaks" about the game bring revolutionary indeed, but also that's not for everybody.
So it may have a lot of 10s but should also get a lot of lower scores too.