User blog comment:Xilinoc/Ch. 592 - Marching Out the ZOMBIES 3/@comment-3219912-20140806100720

The fact that Yumichika tried to release his Zanpakuto's true shikai to protect Ikkaku speaks volumes about their relationship.

But damn, Hitsugaya straight up slaughtered them! It was kinda hard to watch (and sorta cool, but that's beside the point)! Mayuri is calm as usual even in face of zombie Hitsugaya's power.

My theory about the dark skin being due to longer period of zombification may be true since Gigi zombified him while he was alive. That also may mean he still has a chance to be saved.

I wonder what "medicines" Mayuri will try to use? Knowing him, they will probably be questionable.