Board Thread:General Discussion/@comment-12301089-20131211070550/@comment-24843358-20140424015141

Xilinoc wrote: No, no, no. There's no way Kenpachi can achieve Bankai at this point in time. Achieving Bankai requires 10 years of communication with your Zanpakuto spirit. Kenpachi's only been communicating with his for like 2 days.

Besides, Ichigo didn't take 10 years to achieve Bankai.