So, in this challenge, you would be budding of of the major nest and go find a new place to live. And when your queen lays enough eggs, the gene pool will change and you will be forced to compete with your mother nest for the food, as well as land. Maybe your mother nest might have some sort of special ability that will make the fight much harder, and the other nest will constantly send groups of ants to go attack you, if you kill the other ant queen, you win. Maybe this will provide more of the "Kill other ant queen to win" challenges.