It would be very cool if we could instruct units to move in a particular formation. This mostly applies to attack sea, land, and air units. I am still fairly new to the forums so if this idea has been put out there then please disregard my post. If the dev's have already said that this will or will not be put into the game, please enlighten me.
These are on the way, just not implemented yet. Pathfinding(A big part of formations) isn't complete yet either.