I was hoping they could come back and advance the series. Isolation was amazing but I don't want a repeat. I wish they'd do a real Aliens kind of thing: make the weaponry a burden, make the player dependent on each member of your team (in Aliens, Hudson's specialty seemed to be maps, unlocking doors, etc; other people were designated smartgunners, logistics etc. That could work well in a game.) If you watch Aliens you realise that without motion trackers the Marines had no chance at all. They would be sitting in Operations and the Aliens would just drop on them. Isolation had to make the Alien very loud: take that away. Imagine turning around to see the corridors being silently swarmed: firing your gun means you waste ammo, and might harm your team mates or the environment in harmful ways.
Resident Evil: Outbreak had some good ideas regarding this: building impediments and nailing shut doors.
Just riffing but I think C.A. can do Aliens justice. You can make an intelligent, tense, and scary FPS type game if you don't approach it purely as an FPS.