Who will succeed Tsunade?

[Lodratio]

Noone. This is the fourth Ninjawar, in which all the great Nations unite to fight one common foe.
I'm fairly certain, that Kishi will use it to end the Shinobi system. Which means no more
rivaling factions/hidden villages, and no more kages.

 

[Itachi Edo]

If he pulls out something big to end this war then yeah you can put him into it. Kakashi doesn't want the role and Naruto has the support of the younger generation, the theme has always been about the younger gen surpassing the last. Announce he's the 4th's son and you can wrap up the title and give it to him.

 

[TurrinB]

Naruto, it's a given, in my opinion.