Dysons spawn in a certain stance, and will remain in that stance for their entire life. All the dyson spawn that have already spawned and are patrolling your planets as allies will remain as such, but the Dyson Sphere will start spamming out hostile dysons, which will remain as such until they're destroyed. A decently sized group of bombers will chew through the Dyson Gatlings though since they have heavy or ultra heavy armor, can't remember which. A full cap of mk1 bombers should be more than enough to deal with the dyson spawn from having a command station up for a couple seconds.
