I had decided to figure out how many had died and how many were wounded in my recent war. I had figured out a good estimate when I thought maybe it would be nice if I got something like this in my email that I received when I officially took over the country.
When a war ends with either the country being conquered, peace treaty, or surrender, maybe an email should be sent with the total wounded, total dead, total damage done to each country, how many weapons destroyed for how much cost, etc. Basicly just the report of how much the war costed both sides in people, weapons, and cash. Since the game already records the new features of wounded and dead month to month maybe an overall record could be kept and proccessd at a war's end and emailed with the notice that the war has ended with the totals.
I know it would take a bit of coding, it might consume some space data wise especially for a really long, hard war, and it would use up a bit more bandwidth but I think it would be worth it.
Just a thought.