Not quite what you’re after but I absolutely love Diaspora by Greg Egan.
Came here to say that it's the BOOK OP is looking for , Moreover, it's one of the authors present on the fediverse @gregeganSF@mathstodon.xyz
I don't know how the original version works, but in the French translation Francis Lustman made a real effort in building a coherent grammar with neo-pronoms which match very well the book tone, and is a great exercise.
However, Diaspora isn't the most accessible Egan book. I mean, if you never heard about stuff like complex conjugate, or Penrose tiles you'll struggle with some of the concept.