User blog comment:Xilinoc/Ch. 540 - The Sword Five/@comment-6963992-20130605154527

So there is really no difference between his new or old Zanpakuto except appearance because White or Hollow Ichigo is going to be Zangetsu. Also, depending on the translation it says that the Hollows Aizen created or "Whites" are like Asauchi which was why he was able to get a Zanpakuto in the first place because it fused with his Shinigami powers and became his sword. I wonder if were going to get some screen time with Zangetsu next time.