It seems like a common theme for the three chapters i've is for past actions, well intended or otherwise to come back and haunt you.
Kenshin was right in a way that kamiya should have payed attention to the people that was being taught and to watch for retards who might use what they learned for terrible reasons, Even people who seem honest take advantage of her like the old man who wanted to sell the dojo.
It was interesting to see discussions of swords like if they where modern day guns insofar you can't even carry one without getting arrested even though you are kind of safer with one, then without.
I'm assuming eventually someone from kenshins past is going to raise some hell or someone is going to come for kenshin assuming that with his death, the old era will close finally so that a new one can be ushered in but there hasn't been any hints of that yet.