Prey is great and after recently finishing it I decided to do more immersive sim games and played through both Deus Ex Human Revolution and Mankind Divided which I both enjoyed. It's sad we likely won't see more from this genre as I've grown to love how detail oriented the world's generally are.
I really hope Microsoft let's Arkane keep making games close to it.
Not sure what the experience of Redfall will be. It is from Arkane Austin, which did Prey. It seems to have many immersive sim elements, but is also more catered to coop than previous titles. The devs did promise it will still be fullfilling as a singleplayer experience. I assume the part of Arkane that did Dishonored 2 and Deathloop (Lyon) will make another game that is at least close to the genre.
Anyways, both teams have shown to be able to make great games that have much in common with what people call immersive sims.
It is unfortunate Prey got lukewarm reviews and did not do well (I really don't understand how this title reviewed). Deathloop was a success, but I haven't played it yet.
Also, Deus Ex has been bought from Square, I do expect to see the ip return, hopefully in capable hands.