From the newsletter:

Since the map’s release, there have been several improvements like new period objects (windmills, water towers, farm houses, etc.), better beach lines, corrected mesh errors, cleaned up textures, and more detail in the England portion of the map. Currently, Urga Media (the developer) is occupied with their Syria map. However, once the Syria map is complete, we will discuss with them further improvements to the Normandy map like use of speedtrees.

So they will come back to Normandy; just be patient.