My concern is that a nation like Portugal could replicate an English-style empire in the game, which would have been impossible in history (in my opinion). Portugal created an overseas empire through conquest and settlement of isolated factories and fortified trading ports; they never attempted anything like what the English did in New England or Virginia, something that Britain's much larger population (and, admittedly, religious strife) made possible. New England and Virginia were settled extensively by families intent on turning the soil. Portugal, however, without nearly the same population, created a trading empire only--a vast network of soldiers, sailors, conquerors, and bureaucrats (very few women!) who funneled the cash back to Lisbon. They never attempted to really colonize (Brazil being the lone exception), because they simply didn't have the excess population. Even in Brazil, the labor came mainly from African slaves.
So, in the game, the capacity for a player like England to funnel whole families overseas should be represented. I notice that Portugal has a 10 percent colonization national idea in the game, which simply makes no sense to me. Portugal's empire was about trade and military control, not *settlement*--without native populations, many of its overseas possessions wouldn't have had much of a population at all.