Add options to have heavily massacred provinces recover faster. Examples:
*Allow wizards to be aided
This will result in heavily massacred provinces being able to recover faster and it would add an extra dimension to the spellcasting strategies
*Add a spell to 'reveal individuals with magical abilities within the population'
This spell (that could cost either alot of runes or 90-100% mana) would increase the rate wizards are drafted, for example 4 times as fast for 24 hours
*Allow peasants to be aided
Again to help heavily massacred provinces recover faster and it would make for interesting war strategies to send away peasants to prevent them from getting massacred in the first place
*Add a spell to 'have your peasants hide in shelters'
This spell is basically a reversed Town Watch. Your peasants will hide themselves from the enemy so the peasant losses in massacres will be 75% lower, while your income during the spells duration is lowered by 25%