I was somewhat disappointed with the diplomatic system in HoI. Not because it didn’t work great, but because it was simply boring at times to maintain. Looking at screenshots of HoI2 there does not seem to be a great deal of new diplomatic options. In my opinion, we should some diplomatic options that are at least similar to EU2 (I don’t own Victoria, so I don’t know what it offers). For the game to genuinely succeed in the mass market, it needs a diplomatic system that is varied, very fun and exciting to use, while being simple. A diplomatic system also needs to have more direct consequences on the game, which will make the player want to become more involved and provide an interesting alternative to combat.