As I write this, I have just finished the final editing of chapter nine. I’ve been able to edit a chapter a day, so as there are 21 chapters, it should be about 12 more days until done. I might be able to speed that up by working longer on the weekends.
The beta readers unanimously preferred the new ending. The original chapter 21 was a long epilog, but I pulled it off and instead wrote a series of vignettes that just hinted at what happens in the following years. This is so that I can write a second series at some point.