I would be interested in seeing a follow-up mission for Marlow and the crew of the Anesidora.
It would show them going through Sevastopol's quarantine, the player gets to explore the station and interact with the citizens for awhile. Then they are apprehended by the Marshals for the Nostromo's flight recorder, Foster is suddenly complaining of chest pains, and it concludes with the alien emerging in the Operating Room.