Tsunade will probably save some or all the other kage and die herself.
Out of the things I want to see, the Kage are not high on my list though.
I prefer to see stuff about Sasuke's path, the battle between the alliance and Obito+Madara and Kabuto getting out of Izanami.
The kage could join the Obito+Madara fight though.
Raikage, Onoki and Tsunade should just stay dead.
They have fought their final battle imo.
Mei and Gaara are still at the beginning of their Kage career, so I hope those are healed by Tsunade and join Naruto, Kakashi and co vs Obito+Madara.
When I started reading this Manga like 6 years ago I didn't realize that it was just 17 pages every week......talk about slow progression. Its already been like 3-4 years since the Naruto vs Pain battle....