Kizaru is admiral who put his job over his own feelings. Some people already felt that something is going wrong with him. Kizaru has connection to Vegapank and Sentomaru. We saw how Kizaru tried to killed Sentomaru, and killed Vegapank, but I doubt that it is the end of admiral.
I believe that Kizaru will sacriface himself for the sake of letting SH escape from the island. Why he will do that? Well because he will hear the Truth of the World and will make his choice to fight against Gorosei.
What does that mean? SH crew will escape from the island and this woudn't be easy thing to do because of Gorosei.
Gorosei will kill Kizaru, also no one from Gorosei will be defeated in the end of Egghead island.
Also I believe that SH fleet could also come to fight for their captain Luffy, with Dorry, Broggy and every other ally,
So in the end Egghead island will be Win and Lose in same time. Win, case whole world will hear at least half of Vegapank speech. Lose, because Gorosei will be unbeateble opponents.
I believe that Kizaru will sacriface himself for the sake of letting SH escape from the island. Why he will do that? Well because he will hear the Truth of the World and will make his choice to fight against Gorosei.
What does that mean? SH crew will escape from the island and this woudn't be easy thing to do because of Gorosei.
Gorosei will kill Kizaru, also no one from Gorosei will be defeated in the end of Egghead island.
Also I believe that SH fleet could also come to fight for their captain Luffy, with Dorry, Broggy and every other ally,
So in the end Egghead island will be Win and Lose in same time. Win, case whole world will hear at least half of Vegapank speech. Lose, because Gorosei will be unbeateble opponents.