User blog comment:Xilinoc/Ch. 595 - Rubb-Dolls 2/@comment-3219912-20140905065812

Well the Pre-1000 Year Blood War Arc info did say that Mayuri's research would be important. It also mention the "study of the body".

Could that have something to do with the resurrected Arrancar or these drugs he's been using? Or is there more to come?