I'm thinking The Terror meets The Expanse.
I was watching The Expanse
not so long ago and it occurred to me how well it matched up to a potential Alien series:
Three rival factions, Earth, Mars, and the Belters, could have been W-Y, Seegson and UPP. The protomolecule everyone is chasing could have been xenos. The alien stargate that appears could have been space jockey tech.The Expanse
has alien mystery and conflict, political intrigue, military action, and a solid sci-fi base.
Maybe Hawley missed the boat a long time ago. Maybe his Alien series has already been done; all it was missing was, you know, Aliens