War Clouds is shipping with impassable terrain tiles that go on to the map an act in the same way as the central non-playable space. (You will need to print out 2 sets of this file to play with the tiles).
The tiles reduce the number of available spaces from 60 to 48. Since the game ends when all spaces are not empty the game reaches this end condition more quickly. There are several arrangements that will be defined in the rules but the possibilities are endless. The terrain tiles also make the map more interesting in that there are more blocked spaces and tile placement planning becomes much more important.
Currently in the first few turns you have empty land all around and you can build any way you want. The situation does not get complicated until the third or fourth turn when the map is getting crowded. This part of the game is generally much more fun and now happens earlier in the game.