I'm 100% positive that all non-gameplay RPG elements will be masterfully executed. In this regard, I have supreme faith in CDPR.
The only thing I'm really afraid of, is CDPR simplifying RPG gameplay aspects too much. There should be opportunity cost, min-maxing, and advanced player builds possible through player creativity and game knowledge. I'm terrified that CDPR, in their fear of alienating casual players, will make the game too basic in terms of skill, gear, perks, weapon and implant choices.
I truly hope that Cyberpunk won't be remembered as "that near perfect game where character building and character planning was as shallow as a puddle of mud".
If the game has been out for 3 months and someone shares a build that uses a combination of gear, ammo, skills, perks and implants to create a playstyle that makes people go "how did he even come up with that?" then the game has succeeded in character building and combat gameplay IMO. Multiple simple systems can add a deep layer of complexity which is intuitive and easy to learn but difficult to master. If you grab 100 people's characters and 30 or more of them are very similar then the character building aspect has failed imo.
I personally think that the absolute best way to give players creative player agency in terms of character building are mutually exclusive skill upgrades and ways that apply both a positive and negative effect to your character. Example: I take a skill that lowers aim but increases damage. I use an implant that rapidly increases rate of fire, but increases the damage you take after firing. Ammo that is good at close range but bad at long range. Gear that improves stealth but has weaker defenses.
I've now min-maxed a self-built ambush/stealth shotgun build that is high risk but high reward, and that could just be the tip of the iceberg for that character.
TL;DR: I don't think CDPR will fail at non-gameplay, non-combat RPG elements. But I'm VERY concerned about character building and customization. If player creativity is limited to an extent that it is not possible to create a "thinking out of the box" character, then the character building, and to a natural extention, combat gameplay - has imo failed.
Maybe a bit blunt, harsh and to the point. But it's how I feel about it. Ultimately - I think CP2077 will be so good in lore, story, atmosphere and world building that even if character building and combat gameplay RPG elements fail - the game will still be fantastic.