IMHO, there is little useful difference EB will make in EU Rome. The Paradox games have an entirely different point, and it is not the unit variety or a beautiful, expansive campaign map. Paradox maps are already of gargantuan size, with almost limitless provinces, but with few features - not receptive to customisation at all. There really are few EB concepts that could improve EU: Rome. If anything, making EU: Rome more like Vicky is the way to go.