User blog comment:Xilinoc/Ch. 553 - Frozen Cross/@comment-5606268-20131016173327/@comment-11051098-20131016230608

I think the power levels of the captains and Sternritters have been leveled more equal, but it's far from over yet. The Sternritters haven't gone full out yet.

I certainly believe that kind of scenario will occur if Isshin shows up now. Being next to Rangiku again, he will for sure comment on her breasts, and she will physically punish him. But it was noted that her throat was slit, so technically she's dead. But Isshin said he studied medicine in the SS, and he practiced as a doctor in the human world for 20 years, so he could have enough medical skills to heal her.