One thing i would really like to see happen is having a world map with ALL the countries as active regions, which means you can for example, start a promotion from somewhere in Africa and try to make it a Global promotion. Like there is a promotion WWP (World Wrestling Professionals) in South Africa, but I can't make them properly in either EWR or TEW as Africa isn't an active region in the game. You could also add the feature so that users can customize the map, so that they can make certain region active/de-active, add new regions and places.
Edit : One more concern has to be the updates. You could try so that the updates can integrate into the game in a better way like in games like the FIFA series..