Talk:Changelings/@comment-29017069-20161110010244/@comment-24908786-20161111001246

Technically, there are still drones loyal to Chrysalis out there who would still follow her unless Thorax is taken back to the Crystal Empire, Canterlot, and Ponyville to get the ones who replaced the Royal Family and Elements of Harmony to defect and join the reformed Swarm instead.

Plus, there's always the chance those drones could have been found out by Ponyville and the Royal Guards after some time and captured when they noticed they were not acting quite right since the drones replacing the Mane Six were still very off in their imitations of the Mane Six and their normal behavior.