The Dead During the War.....

[Zaney]

So like who's all dead?

I'd assume Killer Bee is dead. Who else like Yamato and others.

Also the state of the EdoKages?

One of the only ones who died and were straight up pronounced dead was like Neji.

 

[Jin Hayami]

Bee is alive in a tentacle that was cut off just before the Hachibi was swallowed.
A character that important would receive at least a few panels acknowledging his demise.
So far Neji is about the only really important character I can remember that's stayed down for the count.

 

[startup97]

Shikaku Nara, Inoichi Yamanaka, Ao, Mabui, Neji Hyūga and hundreds of shinobi are killed.
The 3 Edo Hokage are down while Hiruzen is the only one available to fight. Yamato and Bee should be alive still.

 

[To Whatever]

The biggest loss during the war were:

Itachi's crow
Minato's arms
Neji
Mabui

 

[itachi uchiha fiance]

many died we get actual info after postwar funarals