We need to see demos of the tech behind the game and screenshots of other areas. The last thing this game needs right now is more of the same and comments about shoddy gameplay. I'm convinced that RAD are the next ND and that this game is going to be up there with Uncharted 1 but months and months of speculation could lead to dismisal of the title altogether.
We'll see in an hour. IMO the game has the potential to become a huge franchise this generation, it only needs to be handled right but Sony is stumbling a bit in that regard at the moment, they need to definitely to get their act together until february then the game can be, as you've said, another Uncharted.
A multiplayer component would definitely help further broaden the games' appeal though.