Please, fix the problem of foreign nations stealing land of other nations while they are at war. As the block goes white because one unit defeated another, other nations that arent in the conflict tend to steal that block for themselves and they keep it after the war, which is not fair as they arent in the war that is being fought, and is annoying when you are trying to play an scenario.
Also other thing that I would love to see changed is when nations are at war and one is clearly superior to the other, many times they just will keep making peace at the block next to the capital instead of capturing the capital and eliminating the enemy so they can have more free land