Originally posted by Clemens August
Politics! Politics! Politics!
I hope that the HRE will be modelled properly. That is it's later non-hereditary character for starters. Also, an detailed church hierarchy is needed.
Wars should also exhaust both sides, being prohibitively expensive. Losses should be more moderate, but hits on quality and morale serious consequences of losing a battle, compelling you more often than not to seek refuge in your castles, rather than meeting your enemy in a pitched battle. Mercenaries should be very expensive and decline to fight when left unpaid for long. They might rampage through friendly territory and hand over castles to the enemy, particularly when bribed.
Pillaging should be very destructive, reducing available food (should be modelled), causing famine, depopulation and indirectly diseases. Obviously, pillaging also decreases also your revenue base and your armies supplies.
Given the primitive logistics of the day, it should be very difficult to maintain a siege. Supply lines should also play a greater role than in EU2. If venturing in territory which is void of supplies (for instance by previous pillaging/foraging, refuge and storing of goods in castles, etc) you are highly dependent on keeping supply lines intact.
But politics are most important, of course.