This has been his bankai's new look
Originally Posted by NeoKakarott023
Given that Ichigo never said it one would assume he wasn't as powerful in that state. Example I don't think Juha could cut Yama in half while he was in Bankai.
since the end of the Fullbringer arc
. However, Yama even pointed out that his bankai isn't fully evolved. So it's very likely that he hasn't reached his full potential.