We'll see how deep they go with that aspect of the genre. I'm skeptical, given my opinion on CDPR's work, but who knows.I think that those bits in this game may be too spoilery and come in later so they've not been showcased or something. But yeah you play as a mercenary here so it's more about a cool experience rather than too much philosophy. But I mean, you already have Keanu in your head so that's good enough of a launching pad for transhumanist thought. We already are seeing that we can sorta download out souls and stay alive that way. I don't expect it to go Nier automata levels or GitS levels with it but it's still looking good either way.
I think one of the issues is that there is a significant difference in the world, between the time when Cyberpunk was first developed back in the 80s, and today. And our concepts of technology and how it works, is perceived, etc, are vastly different to back then. So I think there is a bit of a friction between trying to be true to the spirit of the source material, and making it be more accurate to real world advances. Again, we'll see though.
Also, Johnny Silver Hand is what, a projection in our head? Not actually there? That's what your comment seems to suggest, but that's the first I've heard of that.