Board Thread:New on Bleach Wiki/@comment-27120311-20151025235010/@comment-11051098-20151227160005

His Zanpauto was forged with an Asauchi in this arc, but it was still Zangetsu and he still had both Hollow Ichigo/Zangetsu and Old Man Zangetsu inside him. It's still the same Zanpakuto, just "complete/real" now that it has an Asauchi base.

Whether or not he still has a Bankai remains to see, I don't know if anything is certain since the real Zangetsu wasn't the one who lead him through the Bankai training.