[Question] Captains whose Bankai are yet to be seen?

[TheEvilOne]

I really want to see Ukitake's and Kyouraku's bankai.

 

[chickmagnet]

after the fight with unahana it seemed like he was actually communicating with is zanpacto however u spell it

 

[Your Creepy Stalker]

unohana never got to see har bankai wonder why she didnt use it against kenpachi

aizen but back then i honestly dont think he felt like obtaining it

Unohana did use her bankai.