The upcoming update will bring war support, and with that allot of possibilities. I've thought of a few ideas that could be added to make it more interesting (Paradox might actually be adding some of these, although I haven't looked at the dev diaries enough to know). Anyway:
- Battles: If you are attacking an important state, or fighting a battle where a huge amount of divisions are massed, you would get events asking you to choose how to report the battle. You could put little emphasis on it and gain only small amounts of war support for a victory/lose only a small amount for a loss or put huge emphasis on it, and suffer heavy war support losses if you lose the battle. I understand this is probually quite hard to code though.
- Press: You could choose between 4 press types (State run completely closed, semi-closed, restricted and free) and they would give you certain different buffs/debuffs during battles and free press/restricted should give you +0.05 democracy support etc
- If your war is fairly static, but you are reporting that you are winning it then you should lose war support as the population gets agitated.
- Stability should affect war support and vice versa.
- Country specific events could be added such as a low war support Italy at over 20% surrender progress asking for peace, triggering an Italian civil war, of which the player could take sides (and the allies might not accept it).
- Germany would have high war support at the start of the war (WW2), but lose it if the the front is static, or they lose battles. (each of these examples assumes a somewhat historical game)
- Britain would have low war support at the start of WW2, but after the Churchill and a possible Sealion, they would get huge war support.
- The USSR would have high war support if attacked, then start to lose it after the loss of Ukraine and Belerus, but regain it if they manage to make a stand for Moscow/ Stalingrad/ Leningrad. If they manage to push the enemy back somewhat, they would get a huge amount of war support.
- If America joine the war by joining allies at 100 WT, then they wouldn't have high war support, but if attacked by Japan or someone else, then they would have huge war support (there could be incentives such as a pearl habour decision) to make Japan want to do that).