There is but it still in development, if you want to see what happens after the mission then see Interea. And there seems to be a hiatus at the moment, so for now we could only hope.
If you want to know more what happens during the Mission see Khemia
interea takes place within the story of adastra, it is the moon trip that was not told in detail and khemia is the direct sequel. Adastra> interea> adastra ending> khemia
