I can tell you that EVERY admiral 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
This arc pushes Kizaru to make a decision regarding justice. Egghead is tied to Ohara in so many ways. Ohara was when Kuzan's justice fell apart, and he went from Fiery to Lazy Justice.
This is the arc where Kizaru realizes "yeah... the Marines aren't the problem. Even the pirates aren't the real problem. My bosses are the scum of the earth." So, I expect his "unclear" justice to become solidified.
When things go wrong, who do the Celestial Dragons blame? Themselves? Or everyone else?
I think everyone on Egghead that isn't Saturn or a Seraphim is going to get a death-sentence from Imu. BUT, due to S-Snake and S-Bear's history with the Celestial Dragons, I think they'll flat out ignore Saturn, if not attack him. Bonney's last order to the Pacifistas was for them to help them leave the island, too, so, if they unthaw, the Pacifista will be against a hostile force. Now that the WG knows Bonney controls the Pacifista, too, they're honestly more of a liability on some levels than anything.
Who are the Pacifista shaped after? Kuma. Who hates Saturn more than anyone? Yeah.
So, some mix of Saturn and Seraphim vs Kizaru, Marines, and Pacifista. At the least S-Bear and S-Snake will fight against their programming.
There's a chance Kizaru protecting the Marines he cares for triggers an Awakening.