Writing exposition for your characters can be one of the hardest things to do in story telling. What makes it hard is that you're trying to relay important information to the audience but in a way that sounds natural. One of the best ways to get around that is to make it just fun to read. Kubo pulls that off pretty well with Rukia and Renji lamenting on their recent experiences. I especially got a chuckle at Rukia's attempt to stop Renji's post traumatic stress memories from his recent "fitting" from Shutara. This also gives us a sneak peek at what Ichigo will have to go through soon.
I don't know if Toriyama fathered the concept of heavy gravity training in shonen manga, but it's sure become popular ever since Goku. I suspect that Kubo introduced that in this chapter for a surprising reveal later. I'm willing to wager that Ichigo will show up and be surprisingly unaffected.
I'm still wondering where Ichigo is hiding. We get that incredible reveal of his swords. Now, the series is going to incredible lengths showing off everyone but him.
The last two chapters were so drawn out and gave so little information. This was a vast improvement. Partly becasue the characters were much more interesting, and they passed on their message in an entertaining way. Some of the best thing about hinting at these events is that it gives us a peek at what's to come for Ichigo.