If the kages survive, what will they do? I mean will they join the army, or what???

[Sannin no chikarada]

What do u think, they´ll do? They would be probably in a bad condition...

 

[Ventalus]

I hope they won't, I mean they are pretty far away and in that shape it should take ages before they reach the battlefield.

 

[KevinPJH]

They will probably arrive with full health, but Tsunade wont be there. Then it will be 50/50 if she shows up later.

 

[ziggyZ]

They'll go staunch the remaining zetsu.

 

[Ryuchidori]

They will give their titles to the young ones like Tsunade will give the title to Naruto, Raikage to Bee, Kazekage, Mizukage will remain... I dont know Tsuchikage will give his title to who and then Hokage, Tsuchikage and Raikage will go to holiday together