I love hoi4 but the lack of limited peace deals is the one thing that annoys me because it's not satisfying to end the game with swathes of occupied (as opposed to annexed) territory. I think they could rework war support so as to make it the deciding factor for whether a country will negotiate. For example, make WS depend on various factors like manpower lost, current conscription policy, percentage of consumer goods, perception of the enemy's ideology, etc. then once it gets low enough the country will be open to diplomacy. I'm not even wanting them to surrender but at least acknowledge some of the player's territorial gains. Is there any hope we'll see something like this?