Here we go with my little grain of salt.
Love Interest.
* Want to meet our LI again.
* Possibility of having some dates. To eat, play or more.
* More people. More choices. Being able to say you have already someone in your life.
* Living together. Or even fighting together.
Crafting.
* Craft more than one at a time.
* Put some limit so you can't craft more than you can carry (ammunition for exemple).
* Put some color of your choice.
* Have a preview of the item (cloths or weapon).
* Giving name to our stuff.
* For RP, being able to craft at certain location. Never heard of somebody being able to build a sniper rifle in the middle of a street.
* If V has the blueprint of a weapon, you must not be able to buy it again. Pretty please...
* When we make an upgrade, say it. We have "+1 weapons" or "master weapon" for decades in games.
* Being able to make blueprints of our stuff when we scrap it at a high level of skill?
Inventory.
* Use folders to separate items in our inventory.
* Protect the important item from dismantling.
* Why don't we have access to our deamons and prog in inventorty outside of shops?
* Want to look at our stuff with a 3D model.
Cyberware.
* More choices. Only ONE type of eye? Seriously?
* If player want, make the cyberware apparent. Chose color.
* Clunky and apparent ware or fully integrated one? Leave the choice to the player.
* Plastic chirurgy at the ripperdoc.
* Being able to run faster, swim faster, less recoil, look in the dark, seing warmth... so much possibilities but nothing in the game. Just look at Shadowrun, pretty please...
* I know it is against the main story to became a murderous psycho in a killing spree but... perhaps a limit in the amount of cyberware related to the Body score?
* Let us have more info on the UI. Want to have the meteo, heath, wind, local info like a traffic accident, etc... Basically, V smartphone is in his/her head, so why not.
RolePlay.
* V must be tired after so much running. So perhaps needing a nap in his house or in a hotel. Or even hungry or thirsty? Can be a separate mode or on harder difficulties.
* Some people may visit V in his room.
* Being able to put underware, and choose them.
* Using the shower to be clean after roaming in the badlands and the back alleys.
* Not a automatic and free repair for your cars. Even better, being able to change them (color, stats, even put a weapon on it.
* People must react on our weapons and clothes. Must be in great clothes in corpo area for example. Perhaps even giving bonus in stealth.
* Heavy weaponry like assault rifle, sniper rifle and shotgun must be labelled impossible to hide. People must react on it sight if you have it in your inventory, especially cops. Will give great use of the car's inventory space. Just imagine, before a mission you go to your car to equip your more lethal stuff and after it you use it again to hide the more visible loot. Pure RP.
* Having more houses and upgrading them. Or even only changing their look. An ice-cold corpo one, an stuffy nomad one...
* Let us have some interactions with the maxtac and trauma center. Like, working with them. Having a TT contract to have some buff or debuff after a game over.
* Being able to use taxis.
* To let the car drive herself to destination. Giving the possibility to shoot through the window even if you are alone. Now that I think about it, outside some scripted part, there are no car chase. Sad...
Shops.
* Having some specialized shops. For snipers or revolvers only for example.
* A lot of food stall but not a lot where you can buy.
* RP : seeing V sit down and eat or drink outside the cinematic parts.
* Changing hearstyle, beardstyle, nails color, tatoos... Lot of different shops.
* Must be able to see if you have an item and how many of it. Seriously, you have that in the early Final Fantasy and we are in 2021 now...
* Seeing cloths on your V before you buy them. And being able to choose color and/or texture.
* Brain Dance shops. We meet one during the main quest, so why can't we do it again?
* Female V : Why did her breast shrink when she put on some cloths? It is a serious question.
AI.
* Cop AI is bad. Lots of works, won't say more...
* Civilians tends to panic a lot at V actions. Just park our car can begin an uproar.
* Traffic not really smooth. Other cars must be able to dodge a little obstacle.
* Cop spawning magically in an totally isolated place where crime is commited is immersion breaking. To not say silly.
Game Balance in general.
* To have different reputations in gangs, cops, corpo... Want to see different reactions. Shoot on sight or be happy to see V.
* Weapons damages are all over the place. Soon, gorilla arms do a tenth of the damage a blunt stick can made.
* We have different weapons with different rarety. But why an early game epic weapon is crap after a few hours of game when you found a normal version of the same weapon?
* Hard to keep your favorite clothes. The best gear is often ugly.
* Why have regular cloths an armor value? give us normal cloths in shops with normal price and let us upgrade it by putting kevlar inside. Must find armored cloths only in weapon shop or in a special shop (armored tuxedos? I'm Q and I made that all the time...)
* Civilian and cops don't have loot. Why?