A thousand years ago, King Sombra was vanquished, taking the Crystal Empire with him. His brother prince Æclypse was exiled by Celestia for refusing to fight his own flesh and blood, damning their kingdom to the mists of history. In the present day, after learning of the return of the Crystal Empire, and the ascension of a new princess, a mysterious stallion named Wanderlust comes to Ponyville, oddly curious about the bearers of the Elements of Harmony. Strange occurrences in the Everfree Forest give way to a devious enemy returned with a lust for revenge. The fate of Equestria hangs in the balance as a new era of peril and powerful villains descend on them all.
|Wanderlust image by Faith-Wolff

In case you still haven't figured yet, this story disregards some canon material.