Ascended Fanon: Arguable bit. Pinkie mentions a "Griffon Kingdom", with the idea of the griffons having a nation being common in fanworks despite never being mentioned in-show. While the existence of griffon territories is canon in the officially published maps, the name "The Griffon Kingdom(s)" had until then been purely Fanon.
Defictionalization: Pinkie's micro includes a full-blown song sung by Pinkie (of course). Ted Anderson, the issue's writer, actually sought out fan musician David Larsen to compose the actual melody, with fan-VA Eileen Montgomery providing Pinkie's voice.
Fandom Nod: Fluttershy dresses herself in an oversized sweater to hide her identity from others. In the fandom, the humanized version of Fluttershy (as well as the pony version) is often drawn with oversized sweaters.
Raity's issue: Vinyl Scratch's eyes are red like they were in fanart, rather than magenta like they are in the show. Colorist Heather Breckel confirms this is intentional.
Derpy is the Pony Express mail carrier.
Rarity is called "The best pony".
Photo Finish and Hoity-Toity are seen as a couple during the final Canterlot show.
Applejack "boops" Rarity on the nose when talking about the spa.
He Also Did: Sabrina "Sibsy" Alberghetti has drawn several variant covers for the series. Of course most fans know her as one of the chief storyboard artists on the show.• This makes her first (and so far only) person to work on both the show and comic, She's no stranger to comics, though; she's worked on Darkwing Duck and Casper comics to name a couple.
Promoted Fanboy: Issue #5, about Pinkie Pie, is the first professional comics work for writer Ted Anderson. His previous claim to fame? Being a "brony expert" on one episode of Wait Wait... Don't Tell Me! (he's a former intern for the show).
Recycled Script: Both Twilight and Pinkie's issue involve the heroine meeting her retired idol then give him the will to pursue their career.