Honestly, maybe not. All out Kuzan might be beyond broken.
He will be imo. Wait until "permafrost" for real.
Kuzan terramorphed half an island permanently and instantly frozen the ocean and seakings casually. Even went deep underwater with the freezing to some degree.
In before him being voiced by Dios VA is not just coincidence and he can "freeze time" with his awakening too or use "black ice" or something idk lo, im sure Oda will cook something amazing if he wants to ofc.
Kizaru has immense potential too ofc but im not as hopeful now. Akainu has some frost burn scarring from Kuzan, a far "inferior" element/fruit to his (although not always inferior ofc) and even lost part of his ear there. They were equally matched but Akainu apparently gained the upper hand at some point and had to spare Kuzans life, maybe Kuzan hesitated to kill Akainu when he had the chance and Akainu almost dd the same in return OR Kuzan just hesitated in general or Akainu just actually beat him fair and square.
I wish Oda would stop giving us bluer balls than Jinbeis or if Kuzan had frozen them and just tell us or even show us already wha happened between them. We've waited at least 12 years to see and hear more about this shit.
Kuzan also instantly froze almost the entire BBP by himself. He's TERRIFYING. Look what he did to Jozu and Cracker. Man could easily mass genocide if he wanted to.