It will be interesting to see how this might change in the decades to come. Will they find a way to evolve into a "real" colony? Will they find a way to sustain without reliance on "new arrivals"?
Semi-off-topic, those pictures will haunt my dreams.
There are no queens. Therefore, all the ants are from "outside" and there's no chance for a mutation to develop for this pseudocolony to become a real colony.
Semi-off-topic, those pictures will haunt my dreams.