As you progress in the game , it would be bigger planets and longer/harder missions on it. All this would maybe force the player to build bigger drones in order to complete all the objectives (3 or 4 max objectives maybe) and also farm the ressources.
The second point would be the possibility to "scan" planets where you are on top of and see the ressources on it, like you can do it during the mission. It would be a perk that you can gain by doing mission or buy it in a shop. Also, the miner captain could have this perk as a starter perk.