Kenpach is probably bonding, with:
- his Zan,
- Unohana if she is alive,
- all the prisoners (like one of the previous Kenpachis) that are worth taking outside to the battle perhaps ?
Abarai was asleep for, let's say around 6 hours, so Ichigo should arrive in the next 6h ? Well he did say something about it taking from half a day to a week... perhaps he will actually arrive around the 7-9th day ?
As to returning to this chapter, well taking into consideration the whole confrontation between As and Rukia, it seems that she realized the nature of his fear attack, which seemingly was confirmed by it passing through the ice, after which she actually had thrown away (instead of doping it) her Zan, in order to have a free hand to do "it". Yep, she blocked that attack, probably kidou seeing as she needed a free hand. What's more, we might have already seen this kidou in action, it might actually be what Byakuya himself used against the 8th Espada's power.