I’ve finished going through the Necropolis for the first time and there are some things that I think should be changed about the area. Firstly, the area is basically a overglorified cemetry and yet the Aetherial forces there are mostly comprised of corrupted trolls, I didn’t see many undead amongst them. The necropolis would have a better feel if the aetherials forces were mostly human undead (just like Burrwitch).
Secondly, I very rarely saw any Cult of Ch’thon vs Aetherial skirmishes, it’s almost like they had a truce going on in the Necropolis.
Personally I feel like it is alright as it currently is.
Burrwitch Village I believe had plenty of time for Warden Krieg to set up his lab and spread his corruption and rule over the citizens around Burrwitch all the way down to Devil’s Crossing.
Necropolis to me the Cult of Ch’thon have had time to establish their hold in the area (all the blood wagons for instance) while the Aetherials kind of spilled into the Fields of Strife on the way to Fort Ikon - their interest at that moment probably wasn’t focused on the Necropolis which is why you don’t have a large conflict there between the two factions but more of a slow spread of aetherial presence leaking into the cult of ch’thon territory.
At least that’s how I envision it to be.