We have not yet seen many pictures of what it will look like, but looking at current hord buildings we can safely say it will look more or less like the orcs will be living in a garrison made from dirt, rock and meaby some wood if we are lucky. The orcs will live like dirty piggs, like the ones in the orc starting zone. Seems the ally guys got the longer straw and the classier buildings and the orcs will be like dirty pigs on a farm.