That looks like a "No!" to my question re:Cape Horn. That is a little bit sad, but otherwise with the revamped naval ranges acceptable. The game focuses mainly on other regions anyway.
If any map increase requires you to start from scratch, then we have to look for other options to solve the perceived problem. In case of Bremen we might either drop it or create the missing province Oldenburg, which was a small state inside Germany at that point, and reduce the oversized province of W'haven.
Well the AOD team was asked by Mex to expand the map size so if they can do that Cape Horn migh be back in. Antarctica isn't really necessary. Warfare is even more impossible there then it is in Greenland.
And small provinces (cities/islands) don't really have to be the same size as their administritative divisions are in real life. Since they're almost never a border province they can be slightly enlarged to make them easier to use. If the province is enlarged so that it doesn't block the connection between two other provinces then it wouldn't even affect the balance.
What is East Berlin called? Since it was the center of government during the Nazis it'd be Berlin. And West Berlin would probably best described as Spandau. It'd be weird if the capital was East Berlin. It's more a WW2 then a Cold War game.