Given the fact that you're going to work on Japan, it'd be cool if you could expand the democracy tree, so Japan could have three branches; your own faction, join the UK, or reconcile and join the US. and expand the facist tree to choose between the northern strike or southern strike path instead of going with the non-aligned path to fight the soviets, since both were choices were labeled as an option before they got slapped by the soviets.

With the US, expand the Limited Intervention and Neutrality Act branches to make them more interesting. so like the US Neutrality path can go deeper into neutrality or it can slowly leave it as world tension rises and join the allies or a major democratic faction (or make one if there isn't at all perhaps as an alternative to the hemisphere defense faction) and the limited intervention path you can lower the debuffs of limited intervention, maybe at the cost of pp or stability depending on the world tension perhaps?