All I can think when reading this is wow I can't wait to see how the Mane Six get taken over xd

Very promising fic indeed!

"Admittedly, they had failed to believe Twilight Sparkle at first,"

Twilight did all the work for Chrysalis there, acting like a complete loon damned her own logical evidence.

Don't worry, dear. There is no changelings around, you are safe.
It's all just in your HEAD.

It has to have been a few decades for drones to forget that any promotion from a dictator comes with just enough rope to hang yourself. That way, Chrysalis gets either a worthy successor, a loyal servant, or a potential rival eliminated.

A nifty concept, there must be complications though...