With map study of the BC4000 shot, there is a very strong chance (about 60%) that the location Northwest (on the grassland non-shield) will be a 2-special spot (a 20% chance of 1 special, and 20% chance of no specials). There is good chance that the spot to the Southeast (grassland non-shield) will have no specials at all (30%) and a 70% chance of one special. There is zero chance of either of those 2 sites being a 3 or 4 special (barring dateline). There is no way to know specifically what kind of special(s) are in the grasslands at this time, however (e.g., Whale or Fish type special).
Once we see the terrain for a radius of 2 arond the Hut, and/or the terrain just to the northwest of the settlers, we will probably know the layout of the rest of the huts and specials (barring the dateline).
EDIT: Clarified directions (NW vs SE) and added the calculated "odds".