Frankly you shouldn't be too worried on that part. They did cut some RPG features but it's mostly still an RPG from what I can tell (choice of build, multiple approaches to the story etc...). I mean if you consider Deus Ex an RPG then CP2077 isn't any less an RPG as they look pretty similar. The only major RPG content that we know they have cut are "chilhood hero" and "why have you come to Night City" roleplay options.
As for customization, they claimed that they are working on expanding the choices for the player to define their character. I assume the CC we see in the last video is just a WIP of the new iteration.
I think I'd honestly be somewhat happy with even half of what they shown. Though I do miss the childhood hero and reason coming to Night City. Wouldn't really be my ideal RPG anymore but the game seems entertaining regardless, also I haven't seen any game I've been interested in so long (execpt one that was canceled after 8 years) so I'm honestly putting my hope and wallet to Cyberpunk 2077.
I'll deal with whats cut and the whole FPP