Since we're already talking about it:
The follow-up quest to this one, A Vision in Bronze, is going to take place starting in Realm Year 770, after a five year timeskip, and will star Singular Grace. As she and her Circle are occupied with attempting to mitigate or prevent the chaos of the coming Realm Civil War, she is going to find evidence of unknown forces plotting to make the conflict worse, and will end up reconnecting with and working with Ambraea to solve a series of successive crisis.
A Sidereal quest is obviously going to be a bit different in several ways than a Dragon-Blooded secondary school quest, but I have been thinking about doing this sequel for almost as long as I've been running The Last Daughter, and hope that people will enjoy that as well.