I believe Kizaru will die in Wano Act 4 to Teach.
Teach killing an Admiral would show he's on Rocks' level.
Kizaru has a TON of death flags from Egghead.
This leads to Sakazuki vs Kuzan EOS, over Borsalino's death. I think Kuzan's goal is to find the One Piece, to keep it from being used by the World Government.
I think both Akainu and Aokiji will live, and then help prevent the world's flooding deaths, through Akainu making islands out of Magma, and Kuzan using his Chilly Fruit to freeze them/cool them, so people can use them as rafts during the flooding.
https://www.nps.gov/subjects/volcanoes/volcanoes-volcanic-landforms.htm
Land/Islands are often formed through volcanic activity.
I can also see Fuji dying in Wano Act 4.