User blog comment:Xilinoc/Ch. 570 (I can't think of a witty title at 11 pm)/@comment-24572618-20140226225829/@comment-24153155-20140305132958

@Subash: Nah, am absolutely with you on the Bankai part. Just letting him having his Bankai would be more devastating for the Seireitei than an entire Quincy army going in Vollständig-party mode. Simultaneously. Or so I imagine ;)

Am not sure if he would obtain a Bankai after some brief training (although it is very important to know the name of your zanpakuto), but at least things would make him a better warrior. Kyoraku would not have Unohana killed for no particular reason.