After the Changeling invasion, Celestia and Luna make the decision to have Twilight investigate the Elements of Harmony and solve the mystery of their power.

A thousand years later, Rainbow Dash awakens in a world she does not recognize. She has no idea how or why she came to be there. She does not know the language, the geography or any of the rules of this new time. She soon finds allies in Star Fall, a scholarly pegasus whose Talent is Magic, and Astrid, Star Fall's Griffin guardian. Together they set out to discover why Dash has been sent to the future, and how she might return to when she belongs.

War threatens the nations, a Nightmare stalks the shadows, and Rainbow Dash's arrival has turned her into a wild card in a deadly game that pits the law on both sides of a broken Equestria against a mysterious criminal figure, Max Cash. Yet the stakes are higher than anyone knows, for in her research Twilight Sparkle discovered a dark secret about the Elements, something that will shake the foundations of the world.

Cover image by SierraEx
Has a TvTropes page

This story is a sequel to Memory Pending

The story of Moon Mender continues after his dream of an ending ceases. He continues his struggle to belong in a world so far divorced from the only other experience he can remember, but as an outsider of truly alien mindset, will he ever be able to find a place in Equestria? More importantly, will the life he left behind give up on its death grip so easily? The most important thing to remember is that things are rarely as they seem and sometimes, some things are better off forgotten.

This story is a direct sequel to Memory Pending. Without having read that, this story might be a little strange to most, which is frightening considering how strange it is already. It can be read as a standalone story of course, but you won't get the most out of it.

Further, I’m fully aware that not everypony enjoys more mature themes, so any scenes containing things of an M rated nature shall only be released in a separate story when the time comes. This story deals with more mature themes on a whole, as a warning. This version will do its best to censor the really sensual or graphic content out, of course.

Last but not least, this story has reached this final format through combined efforts of not just myself, but many a helpful pony along the way! Here’s an abbreviated list of those involved and the rolls they played:
Kiroberos – Author (Obviously)
Julia – Editor (Corrections, Grammar, and Flow)
Azu – Beta Reader (Corrections, Flow) (Until Chapter 35)
ExplosiveBrohoof – Beta Reader (Grammar) (Until Chapter 22)
Muffinking – Beta Reader (Corrections, Grammar) (Until Chapter 22)
All of my readers for being amazing, supportive, and best of all, enjoying the world we read and write about.

Sometimes, bad things happen to good ponies. A year following a tragic incident, Twilight Sparkle returns to Ponyville to visit what she has been missing - her town, her memories, and most importantly, her friends. But will everything be as she remembers it?

This story has a sequel titled "In History, Maybe".

The sequel to League of Discord. Twilight Sparkle and her friends have successfully returned the six champions to Runeterra, but find themselves dragged along with them. They must now find a way home, despite having no help from an apathetic League, and having yet another pair of ambitious and sinister eyes watching their every move.

Distance can drive us apart. It can also bring us closer together.

After all is said and done, and the ponies have gone their separate ways, the only way they have to keep in touch is through letters.

Original Equestria Daily post is here
Russian translation
Chinese translation
Polish translation
Spanish translation

Now with music and audiobook

Left only with a promise to keep in touch, Rainbow Dash struggles to convey her feelings, and to figure out what the words were that she couldn't say on that last snowy night at the train station before Twilight left. As everyone slowly drifts apart, Dash will have to put in the effort if she wants to keep her friends together.

After a summoning mishap, six champions from Runeterra's League of Legends arrive in Equestria. At first, they are focused entirely on getting home, but soon find out that it might be more complicated than they thought when Discord decides that he can use them for his own ends. Continued in The Redemption of Jericho Swain

A down his luck actor finally gets over being jerked around. He sets off on his own, leaving the big cities in search of someplace to settle down, reach his dream. He always wanted a stage, always wanted to take his audience by storm. As such, his dream to own his own stage takes precedence in his mind.

And he could think of no better place than the countryesque town of Ponyville. Why? So much had happened there already, why not? Ponies would willingly go there.

Of course, style is important and where else in Ponyville would you go?

"Welcome to Carousel Boutique; where everything is chic, unique and magnifique, I'm Rarity, how may I help you~?

Sequel to Agliophobia.

(Another one to rewrite. Opinions welcome.)

Join Demonheart, Fluttershy and the other element bearers as life as the mane six know it is flipped as the mysterious new stallion joins the town upon which they live in. In a tale of Romance, Jealousy, theft, sorrow and paranoid ramblings, the mane six will discover something very interesting about their new friend.

Something he had hoped to never let them see.

Hi guys! This is the rewrite for 'A Demon's Rage'. And before you kill me, no I didn't steal the name from the Octavia story of the same name, I was unaware of it's existence when I created this. No Copyright. I did NOT make nor do I own MLP;FIM, although that'd be really AWESOME and there may be language in this fiction. Maybe. Oh, and bacon.

This story is a sequel to Paranoia

Talisman.

His entire name and appearance screams anonymity, nondescript and boring. But this unicorn stallion is far from normal. His arrival one cloud ridden morning in Ponyville sees him practically living within the confines of the great library and, inevitably, in the company of Ponyville's leading scholar and element of Magic, Twilight Sparkle.

So... What in the hay is up with this stallion? And what's the story behind the stone around his neck?

Sequel to 'Paranoia'