Incomes from buildings have been slightly improved.
At lower levels in the lifecycle they will gives more money, but at the end of the lifecycle remain mostly as vanilla.

Check the topic for details.

Ranks on recruitment for cultist from the ancillary have been fixed.
And replaced the 50% plague duration bonus of the great unclean one (nurgle) by +15% replenishment !

Upkeep cost rebalanced aswell.

Recruitment cost fixed !

Check the topic for details.

Ancillary Poisoner changes :

Edited : -15% attrition damages suffered for your own army
Added : 15% attrition damages for enemies in region

Poisoner reduces the attrition you suffer like it does vanilla with a little buff, and it does now too increase the attrition damages you causes to enemies in region.