Twilight's friends are her highest priority; she'll do anything for them. That's what she's always told herself. Time shall tell if she can truly uphold her words.
Luna has learned a great many things since her return, but a coincidental meeting with a young mare in the dead of night leads her down a long, dark road which has been purposefully shunned away from the world. Her hope; shed light upon it.
Celestia has finally decided to settle down and retire to Sol Point, her secret, secluded private estate. A place of tranqulity and peace, it's location is unknown to all but herself and her family... that is, until Discord shows up.
Hearth's Warming eve has never been colder. But, as snow falls and ice forms, contrast appears in our trench. Not a blink, strobe, or flash; nay, the sun itself.
700 years have passed since the night Nightmare Moon defeated her sister Celestia and cast her to far off lands, stripping her of power. Now, the hate in the younger sister's heart has faded, and she has brought Celestia back to Equestria.