I do look forward to whether Oda has Kizaru face a Straw Hat in the final war or not. I'm sure he's closer to changing his stance than someone like Aramaki or Akainu, but by the end of Egghead, Kizaru claimed to still be willing to do his duty even against his personal wishes. Sanji vs Kizaru would be great, but we'll see. Plus I'd like to see more of Kizaru in combat.
As for that point in Egghead, Zoro had Lucci which could have been great if it was at least on-panel. I didn't mind the end, but the clashes prior to that should've been shown. Zoro will get his time against an Admiral soon enough, I mean he had the clash with Fujitora, Sanji was simply getting his time to impress an Admiral, but Luffy was the Straw Hat who was tasked with facing Kizaru in extended fights.