MARE NOSTRUM (Our Sea) will be a mod for Europa Universalis III Divine Wind. I started a week ago (exactly 29.04.2012) and obtain some progress, mostly map. Yes, there will be a brand new map with nice colors. The mod focuses on third century BC when Roman Republic began to rise. The start date is 272BC. But, because of the hardcoded things I had to use old Roman calendar; Ab urbe condita, shortly A.U.C.
Also I want to mention about population system. In the mod there will be no base tax and base manpower. Province population itself will provide them. I should notice that the population represents the adult males of the provinces which is 25 percent of the entire population.
First Alpha Footage:
To see it large: http://uppix.net/c/c/2/e228683289d3f...c090ae983d.jpg
A footage from vanilla for comparison; both are in max zoom out
There will be not only one Mare Nostrum but many; Red Sea could be a Mare Nostrum for Egypt or Blacksea for Pontus, Baltic for Germans..