Late to this thread, but what I really want from this game is for it to go fully weird, but not in the way people might expect. Not in the Sam Lake 'this world is particularly weird and freaky' way (though that would still be cool). But I want CP77 to get weird in its music and OST. Witcher 3 was fairly favoured for its OST with its famous Lelelele's and Gwent scores. And I hope CDPR keeps this trend.
This game takes place 60 years in the future. Now think of how music has changed since 60 years ago. Imagine that same progression but into the future. Actually, we don't have to be that predictive. There are plenty of songs that exist right now that feel weird and futuristic. Personally, I'm looking at artists like Alice Glass for her unique grittiness and The Algorithm for their funky fusion of techno and metal. When I played Watch dogs 2, I found Crystal Castles' Crimewave on the ingame radio and I wasn't that into the song, but I listened to it because I thought it would be the kind of music that Marcus might listen to. And it really grew on me and to fit the game so well!!