It was a good read, I enjoyed this issue.
I remember hearing/reading here long ago that the current status of thing sis that Jhin has gone to Piltover because of a contract he has, Zed is after him and Shen and Akali are following. This comic is just aligning all that. I expect Zed to get out of jail.
One thing I always said is that if and when Kayn returned to the Order after getting Rhaast to 'claim' to be leader, Zed would kill him for (a) not destroying the scythe and killing a fellow member and (b) trying to think he could be leader when Zed is still alive and well and in charge.
This is like a way to get out of that scenario. Zed is captured so Kayn is leader by default, not skill or natural succession. The fact he has Rhaast and Zed hasn't responded to it is odd to me however, his arm is covered and he has the scythe.