Three-hundred years after Equestria failed to overtake the human race, humanity took to the stars. The newfoals left behind by Celestia's hasty retreat, as well as the ponies trapped on Earth after the war, have integrated into humanity, with both races eventually regarding each other as equals.But now, in a distant corner of the universe, a colonization ship known as the Calvin has discovered a small bubble of warping space-time on an otherwise uninhabitable planet. It's exactly the same size as the one that appeared on Earth many years ago. Wouldn't you know it, it was exactly what had appeared the planet all that time ago.The Conversion Bureau Conquer The Stars is an in-progress fanfiction by Dalek IX, the same author of A Hero and Friends Of A Solar Empire. As of right now, it's available to be read on the Space Battles forums right here (with chopped up scenes, and discussions) and here (a story only thread). There is also a copy on FIMfiction, here.
This fanfic contains examples of:
Aesop Amnesia: In Not Alone, Twilight contemplates using the potion on Shining to heal him after he lost his two rear legs in the war, but dismisses it because she felt he wouldn't even be the same pony afterwards. She then suddenly realizes why humankind so vehemently opposed ponification. For some reason, Twilight either forgot this epiphany in the sequel, or is trying to deny it.
Word of God appears to imply the latter, claiming Twilight considers Celestia a second mother and the idea that she could be wrong about anything is essentially anathema to her. As such, she's doing her utmost to deny anything that would shake that faith in Celestia's motives, et al.
Artificial Limbs: Firebird has five of these. Shining Armor also has a pair to replace the legs he lost during the battle in South Africa, but they're not very well crafted things, only allowing him to walk but not do much else. More form over function.
Breaking the Fellowship: The Mane Six. Twilight firmly believes Celestia was right (though mostly because she doesn't want to believe her mentor could ever be wrong about anything). Fluttershy has severed ties with the others and went into hiding. Rarity is trying to pretend nothing's wrong. Dash feels betrayed by Fluttershy's (justified) leaving. Pinkie's trying to hold the rest together. And AJ's starting to doubt Celestia as well.
Bully Hunter: Firebird got her cutie mark (a pair of swords crossed over a shield) defending someone from a gang of bullies.
Chekhov's Gun: In Not Alone, the last scene is Celestia reading a letter from the queen of the Gryphons, telling Celestia that her Omniscient Morality Licence has been revoked. The backstory that Dalek has revealed shows that this led to the Gryphons, Zebras and other species in their world to wage war with Equestria, forcing Celestia to "jump" Equestria again.
Crapsack World: Equestria. Economic collapse and war has decimated the country, and forced Celestia to jump onto a planet that is just barely habitable.
Meanwhile, the Calvin suffers from overpopulation, lack of resources and crime.
Even so, both have places where the crapsacky-ness is especially pronounced. Equestria has Hoofington, and the Calvin has Sector twelve.
Even Evil Has Standards : Apparently, the Changelings fought alongside the other races against Equestria during the war. Although whether it's this trope or if they're simply looking out for their own interests at heart remains to be seen.
Freudian Excuse: Firebird's parents are Newfoals, which made them total doormats who were unable to deal with their daughter's fiery personality. They also couldn't come to terms with her cutie mark and even more, Firebird seems to strongly feel she should've been born a human but was cheated out of it.
There's enough hydrogen to transmit a Sound that exists in frquencies beyond normal hearing. The only time that someone managed to translate The Sound of Hyperspace into something audible, all those who heard it committed suicide and several more were murdered by the one person who didn't. It's standard protocol for ships to have no contact with anything outside the ship during transit.
Ignored Epiphany: With Twilight. Although she does believe in humanity's reason for going to war was due to fear of their bodies being changed, she still hasn't quite realized the personality changing effects of the conversion potion, and furthermore, still believes Humans Are The Real Monsters and thinks the other species' anger about their Assimilation Plot was unfounded. To be fair, Dalek has also said that this is more due to Twilight just not wanting to believe that Celestia, who might as well be her second mother, could be wrong about anything.
La Résistance: This is building up in Hoofington for the reasons as illustrated below. A small group of gryphons, zebras, changelings, minotaurs, and elk that got carried over in the severing are also in the picture.
Laser-Guided Karma: After the mess on Earth and the other species (the gryphons, zebras, minotaurs, elk, and buffalo) catch wind of what the princesses tried to do, they cut off all ties with Equestria, causing economic collapse. And then they declare war, in which Equestria loses ALL of their coastal cities, along with Manehattan, Appleloosa, New Pegas, and half of Hoofington, forcing them to dimension jump to another world. Not to mention the ponies now are on the verge of flatout revolting against Celestia and Luna.
Twilight herself is on the receiving end of this. While her friends don't blame her for anything that's happened, the rest of the ponies do, having marked her as a social pariah and ostracsized her.
The Matchmaker: Firebird, of all people, tries to hook up Evening Star with Steel Prism, a cop and her escort during the undercover mission to Equestria.
Multiple Choice Past: Firebird. Evening notes that every time she asks her about what her life was before becoming a thug, she spins a different story.
Social Services Does Not Exist: Justified with Firebird, and presumably others like her. Due to escalated crime rates, lack of resources and overpopulation resulting in seedy slums, several people just fall through the cracks. Luckily, Firebird does get help later on.
Sophisticated as Hell: Sunny Disposition manages to combine extremely technical language with copious amounts of swearing.
We Are As Mayflies: The ponies can live for a good few centuries, which was a problem for Evening Star when she outlived her friends. Though humanity does catch up through advanced medical technology.
We Could Have Avoided All This: It's for this exact reason many of Equestria's residents have lost a lot of love for the princesses, due to their actions on Earth leading to economic collapse, war with the other species, and being forced to "jump" dimensions, and are teetering on the edge of a full blown rebellion. Twilight also feels this way in regards to her disasterous interview.