(Collab with yodajax10. Takes place immediately after "Father Knows Beast".) Spike flies to Canterlot to ask Princess Celestia for answers about his past. Princess Celestia opts to tell Spike about how his egg ended up in her care.
Not long after taking the throne, Twilight finds herself in need of company while she waits for her first friendship council meeting. So she decides to invite her old Canterlot friends over for a sleepover.
Starswirl comes to the Crystal Empire to take a break from exploring and teaching. Mistmane asks him to help her with keeping Flurry Heart's magical powers in check for a while. Starswirl accepts, and the two learn how powerful the foal can be.
When Misty discovers Senor Butterscotch, she asks Izzy about why she created the fake unicorn. Izzy reveals it all stems back to her childhood in Bridlewood.
(Spoilers for Make Your Mark: Chapter 4.) While still adjusting to life in Maretime Bay, Misty happens to bump into Sprout. As it turns out, Sprout knows something about what Misty's going through. In fact, he's had a similar experience.
Gilda comes to Ponyville, hoping to reconcile with Fluttershy. Fluttershy, though surprised by Gilda's sudden appearance, agrees to hear the griffon out.
The changelings are having a beauty contest, and Ocellus gets roped into it. Will she win, and get the affections of her dearest Scoots in the process?
(Loosely based on "Winnie the Pooh and a Day for Eeyore".) Sunny becomes convinced that Sprout feels like he's been forgotten, so she decides to cheer him up by having her friends work with her to throw Sprout a surprise birthday party.
(Semi-related to "The Pony and the Yak" through "Only A Pony".) When Yona falls ill with a cold, Sandbar takes it upon himself to care for his girlfriend.
Sprout doesn't really care for the holiday of Winter Wishday, and voices his displeasure openly. Little does he know that his friends are opting to stage an intervention. Or that one night he shall be visited by some unusual guests.
(Takes place prior to the time skip in "The Last Problem" for obvious reasons.) Granny Smith's life comes to an end, and the Apple family comes together to mourn her passing as well as celebrate her life.
(Contains slight spoilers for "Make Your Mark: Chapter 2", takes place after "Have You Seen This Dragon?".) Sprout tries to prove his usefulness to Hitch by agreeing to dragonsit Sparky. But Sprout soon ends up in over his hooves.
(Takes place prior to the start of "A New Generation".) Alphabittle finds himself having to try to talk sense into Izzy when she wants to leave Bridlewood and make some new friends. But can he persuade her to see things his way?
Izzy takes it upon herself to cheer up Sprout and make him feel welcome and wanted again. Sprout isn't in the mood, still distrustful of pegasi and unicorns. But Izzy isn't the type of pony who takes "No" for an answer.
Izzy, Zipp and Pipp learn from Hitch about Sunny's father and what happened to him. They then decide that the only thing do is to visit his grave so they can be there for Sunny.
Sunny surprises Hitch with a proposal to go on a date. Hitch is extremely nervous because Sunny isn't just a friend, she's his childhood friend. Will the date go off without a hitch?
(Takes place immediately following "Crusaders of the Lost Mark") Diamond Tiara tries to make amends with Silver Spoon after turning over a new leaf. But Silver Spoon isn't necessarily convinced of Diamond's change of heart.
When Alphabittle is seen with Queen Haven, the media of Zephyr Heights start reporting that the two are a couple. Izzy is excited to plan a wedding for the rulers, but Zipp and Pipp are far less enthusiastic about the whole thing.
(Takes place during Season 2.) Princess Luna officially meets her niece, Princess Cadence. The two alicorns have never met before, though. And for Luna that is a bit of a problem.
(Story idea requested by JBlaser on Fanfiction.net.) Rarity and Rainbow Dash experience unusual dreams after a potions mix-up, and even Princess Luna is unable to dispel them. It's up to Rarity and Rainbow Dash to solve their own problems.