For Twilight, the increased lifespan that came with princesshood had forced her to outlive her friends, but thanks to Rarity, she will learn that centuries could be lived in but a single day.
The time has come for Celestia and Luna to move on to the next state of being, and for the younger princesses to step into new roles. The time of succession is at hand. But change bring new challenges for Equestria.
In the distant future of Equestria, Luna is recalled to Canterlot against her will to participate in a court case that will decide the future for sentient machines in Equestria.
Through a miscommunication between herself and her mentor, Twilight accidentally starts a war with the Griffon Empire. Well, maybe calling it a "war" is too generous...
Old Ponyville has grown throughout the decade, with Twilight Sparkle at the controls in her castle. Building upon the harmonies of her friends. Allies chosen with care. Garrison turns into fortune.
Of course Twilight ascended to Alicorn and was crowned as a Princess, but what became of the old Twilight Sparkle? Or rather; where did all the rest of her go? Now there is a Summit. Only most of her friends are shocked.
Time traveling from five thousand years in the future, Twilight Sparkle—or as she prefers, Glitter-Flanks—has one mission: to establish the closed time loop that sets her and Celestia up as a couple, by flirting as aggressively as possible.
Twilight Sparkle failed her entrance exams for Celestia’s school. Worse, she is a danger to both herself and others, resulting in her magic being suppressed. Dreams crushed and now one of the weakest unicorns, a nightmare comes to her.
When Twilight visits Celestia's private hall of stained glass windows, the portrait of an ancient astronomer catches her eye. Who was this pony? Why was she so important to Celestia? And why does she look so familiar?
Ant Mill is a college student, stuck in a dead-end internship she took just to fulfill her requirements. All she does is wish she was somewhere else, but when she has a chance encounter with the Princess of Friendship herself, all that changes.
Twilight finds herself struggling without a clear path in front of her, as a princess. In a bout of panic she seeks out her mentor, Princess Celestia, in the hopes of gaining answers, only to find herself with some much more distressing questions.
Celestia has a final lesson for Twilight: who you were yesterday and who you are tomorrow are completely different ponies. Written for the 16/08/2014 writeoff competition "Famous Last Words"