While there were originally 16 chapters planned for this fic, I've decided to not pursue this story through its planned end. The truth is that my enthusiasm for Sherlock was already waning before series 3 came out, and series 3 was essentially the last nail in the coffin. Other than completing the current crossover that's a giftfic, I have no interest in writing more Sherlock fanfiction.
To bring this fic to a close and provide some closure, I've deleted chapter 15 from the main story and am effectively ending the story after chapter 14. Chapter 14 feels like a fitting place to end because the main plot and relationship are resolved by then. Chapter 15 can still be found on my AO3 account if anyone is interested in reading it.
Thank you to everyone who has read and commented on the fic. Thank you so much for your support. I'm sorry I couldn't do right by the readers and finish it.