Personally, I like the current map a lot in terms of terrain, I could ask for some changes, but in general I like it as it is.
What I don't like is that the factions are separated in their continents, for me, both factions should be present in both continents obviously, there is a predominant faction in one continent, but there should be more enemy presence.
In the end the opposing factions will always seek to expand their territories and there will be wars and they will not always win in their territory.
Also, as a player, it's great to have to go through areas where you can run into enemy players or even do missions where those enemies are, because everyone is in their own territory, everyone is happy to do their own thing and ignore everyone else.