A young pony flees the Crystal Empire during King Sombra's reign; a thousand years later, a group of ponies arrives in the Empire with a story to tell.
Humanity's space exploration ultimately took the form of billions of identical probes, capable of building anything (including astronauts themselves) upon arrival at their destinations. One lands in Equestria. Things go downhill from there.
There is a day those mischievous, playful changelings of Respite hold most important of all. The day Queen Serenitatem set aside to give thanks to the ponies who shared love, and one where love between races so often thrives.
There is a hidden village deep within the untamed forest surrounding Neighagara Falls. Should one ever journey to this village, the changelings who live there will welcome them for a simple price: love.
After seeing what happened when she accidently changed her friends destinies, Twilight is curious about about the 'what if'. Like, for example, what if Luna had ponies a thousand years ago who noticed her.
On the way home one night, Fancy Pants discovers a painting of extraordinary quality being thrown away in the trash in the poorer part of Canterlot. Curious, Fancy discovers a depressed artist who's down on his luck named Acrylic Brush.