Re: Naruto seeing people in the war.
Well, It seems that during the making of his TBB where he got to control both negative and positive chakra to a specific ratio, he also increased his Sensory Detection with Sage Mode and he' has sensed all the tensions on the battlefield. (that's why Gaara wasn't shown since his battle wasn't started yet and Gaara is cool as a cucumber as always)
Coming to the picture...
In the left, there's Sakura healing people, below it seemed to be a fight (perhaps Dan's fight but I'm not sure) and at bottom, it's dead shinobis and zetsus.
On the right, there's Kakashi and Gai and their blurred rampage, below them is Kakuzu who is fighting against Shika-Ino and random shinobis and at the bottom is Kimimmaro against numerous Samurais.