Well, they mentioned that it's going to be a section of England. And it seemed like due to the scale they changed to a more abstract version than they did in the first game.
While you traveled around "in the world" in Conquistador, it seems like now you are traveling "on a map" if that makes sense.
And the map seemed pretty dull. Completely independent on whether or not these are the final graphics.
If however this was a pure placeholder (as if they just had put in a pink screen) then, yeah, my impression might change. But if they just improve the graphics - which I don't really care about, I don't think I will be impressed by the map.