It will have most of the same buildings as the other 4 races (main hall, food producer, altar, primary troop producer, spellcaster producer, secondary troop production building, shop, tower, and ultimate). It will also have the four element towers upgrades. These towers will also serve as the upgrader building. Each tower will have an attack and an armor upgrade for that element along with the ability that gives the units of that element a weak, special ability. (like fire unit's immolation)
So in total their will be 9 buildings plus the four tower upgrades.