Just like in the episode where Princess Cadance and Shining Armor connect their horns to defeat Queen Chrysalis and her Changeling army, however instead of being blasted out of Canterlot (like in the episode) something else happens.
Twilight Sparkle notices that the changelings have turned into butterflies. As for Queen Chrysalis, she is now appears much younger and has a pair of beautiful invisible wings. Princess Cadance and Shining Armor are stunned and they recognize that Queen Chrysalis as transformed into Princess Danaus of the Flutter Ponies who fled her homeland when she became cursed a long time ago.
A tearful Princess Danaus hugs Cadance and thanks her for saving her and how she could repay Cadance, but Cadance says "Don't worry about us; worry about the ponies back home that miss you! Besides your wedding gift is more than enough." The final panel shows Princess Danaus and her butterflies returning back to their homeland.
- https://www.youtube.com/watch?v=wKpS5G2Wf90&list=UUHKDtSVVEc686EW7jRSCpZA (fan reading by ObabScribbler)