My first campaign since the update was Archaon. Daemonic Emergence triggered twice, one time in my Khornate vassal's territory and one time next to my capital, spawning a hostile Khorne and Slaanesh army respectively. The Slaanesh army was actually pretty high tech with several Keepers of Secrets and other high tier units. Was able to hold it off because as WoC I build garrison buildings on all Dark Fortresses and Archaon can recruit LLs + armies instantly, but otherwise that would've been rough.
When I read about the feature, I was worried it was gonna be "enemy armies randomly spawning in your territory" but I was hoping that CA would surely put some safeguards in there so that corruption


