Luna’s return from banishment has been a challenging learning process. But as the years pass and Luna becomes more aware of Equestria’s current technological state, she has a critical question for her sister. Why?
When Sunset awakes after a spell meant for the guards escorting her out exploded in her face, she finds herself in an Equestria that wasn't the same Equestria she knew.
Gallus and Sandbar both die saving the world and enter Heaven. As they discover more about the place, they learn about new feelings about themselves and each other.
Princess Luna is a mare of routines. She wakes up in the afternoon, contemplates her life, and completes her duty. When Celestia gets sick, this uproots her routines and is a chance to change things for the better.