I can tell you that EVERY admiral fan will be disappointed if that’s it for Kizaru.
His inner conflict did not even have a proper conclusion and feels like it was ham-fisted to give him an excuse for his lack of involvement as it has no pay off like him growing a spine
I still want to believe Oda emphasized Kizaru's turmoil almost every chapter since he entered Egghead prior to the elders all arriving
was not random in a series where most characters are one-dimensional and this is why I still cope Egghead isn't over
If it is "closure' is spending the last 15 chapters depressed on the ship I will not bother defending him anymore