Ok so firstly I find the 2 new regions added much better than the first 3 on offer. It's a pity I have unlocked one already and have no intention to unlock another as the resources required are then from multiple cities which can be annoying. The fact that we can now have separate regions brings up the question why can't we have a separate region or city as our war base.
For each of the Arena's you have different amount of damages that can be done, so why not have like a war city/fort where we can build up those number of buildings. Each time you attacked it only affects the buildings in that city and doesn't affect your capital city. Buildings must be a standard issue from EA and we just have to build them without any cost.
I also find it annoying when in your region and you in war, you have no idea what's happening or if you been attacked. You need to keep returning to Capital city to see whats happening in war. think we should have access to war map from any of the regions we are in.