Here's my two cents:
First off - I played them all. Baldurs Gate, Elder Scrolls, Far Cry, Witcher. Name one popular RPG and / or FPP game of the last 20 years, I played it. Witcher 3 to me is still by far the best out of them and so I preordered CP without even thinking about it.
With that background, I was somewhat unsure what all that "customize your char"-fuss was about, when I basically can't see my char ingame. And I too had the impression, that this might be a big letdown in the end. But then I thought about it some more (and some quotes from interviews hinting at "tricks" to give you a look at your char ingame) and asked myself, what these "tricks" might be. Mirrors, reflecting windows, of course. But if you dive deeper into it, there are plenty more ways to stay in FPP and still provide you with TPP-like moments: watching your char on a monitor (you have been filmed by a drone or a cam and now you watch that footage) is one thing that comes to mind. Think about it and you will come up with more possible ways (like I did). With all that in mind, I start to believe that this might actually work for me. FPP but still enough "screentime" for your char to see the customized char - and the changes throughout the game.
So, as it stands now, I tend to be more curious what CDPR will come up with. I think they do in fact have a clear vision of what they want to achieve, and I also think that maybe I will be happy with the final result. Like, really happy.
There are very few game devs who can pull off such a thing, and CDPR is one of them, that much is sure.