have you ever been in the situation you got cornerd in a plain field only because, the map ends there?
I don't know if that is possible or even can be part of this mod, but perhaps the devs from talesworld read this post , too.
If you have the map created, you could define general parts of it, through what it can be automaticly enhanced, should a battle take its way into one of its corners of the map.
Those don't have to be the same quality or detail, just don't block us from movement.
If you are in the desert, more desert, plains ... more of it, mountains ... more of it. Not the lovely sights you put in the maps yourself, just more land.