Also, the overwhelmingly need-to-know for this is not actually, that bad. Think about the fact that the map will be a 1.6.4 pre-1.7 map. The new terrain won't come in until the map expansion, I would expect that -- most people would expect to wait for the new biomes to build their towns in some of the new beautiful areas being implemented. Only townships who plan to build as close to spawn would weigh those differences legitimately, or those who wanted an early start -- however, that's probably the wrong way to go, since many people have personal regions and free LWC's. Make a base, and hangout there, and wait a week or two. You'll need the time to gather the materials, and money required to even start a township. Plan your township's actual construction for 1.6.4 or 1.7 biomes, and gather materials in the mean time. Knowing your overall design, block types, buildings you want, # of people you have, and all of that will be the bigger factors for what size of town you will need. Knowing that small is this, and medium is that, right off the start, won't change your actual planning, it will only change which one you need. =P