Discord turned down Tirek's offer. As a reward, Celestia grants him the Archduchy of the Everfree. Naturally, no pony expects him to take being a noble seriously and just use the Everfree as his playground. Poor fools. As if he can't do a bit of both
Thanks to the love bomb at the Royal Wedding, Princess Celestia is revealed to be a Changeling Queen. How will Equestria, deal with this? And why is Celestia a Changeling Queen in the first place?
Celestia and Luna were born as earth pony foals in a dangerous world. They must rise from nothing to become the princess we know, upsetting chiefs, gods, and the very forces of nature in the balance.
A recurring nightmare convinces Luna that, since her return, she has never regained her sister's complete trust. And at the forthcoming Festival of the Eclipse, she decides to make amends with a bold gesture: she removes the moon from the sky.
After spending Nightmare Night in Ponyville, Luna decides on how to reward the six mares who defeated Nightmare Moon and saved her from herself: Marriage.