Yeah.... this war is turning into pure fanservice, imo.
How the hell is Kabuto supposed to know who Haku was? Or Chiyo? The tailed beasts and past kages I can understand, but this kinda just got silly.

Then, of course, there's still the little matter of them being IMMORTAL until someone comes up with one jutsu to take them all out at the same time.

I'm liking the effort put into setting up the army divisions, though past experience taught me that Kishimoto is better at thinking up smart squad formations and strategies than actually utilizing them.

I'm going to expect an all-out brawl of generic ninjas vs generic zetsus in the style of sand vs konoha, while the kages and prestigious ninjas struggle against the zombies, perhaps holding them back, but only until Naruto shows up to turn the tides.