User blog comment:Xilinoc/Ch. 585 - The Headless Star 4/@comment-5147109-20140618150244/@comment-24384892-20140618151107

It's possible they won't appear until the final battle against Juha. The final battle might be Juha vs everyone, including Ichigo. Just like when Aizen took on the Gotei 13 and Vizards.