Oh, I was waiting for this question soo much, from what I've heard it's only gonna be a graphical improvement and not much else like a enchanted and expended edittion, but I'm still gonna say my wishes.
I don't even know how to start(I hope what I wrote right now, it's gonna be useful for someone)
1) More romance options
i know...I know... everyone is talking about this, but come on, what is Witcher without romances right? In the first Witcher game are a lot of them like a very lot, in the Witcher 2 are still a lot more that are in the Witcher 3, and this is not good, it's killing the vibe and the immersion
For example there are 8(7) main romance options not including the brothels
Kiera, Triss, Yennefer, Yennefer again, Sasha, Jutta, Shani and Syanna and that's it, like really? Sooo many missed opportunities, in The Witcher 1, Geralt almost sleep's with every girl he meets(i'm serious) but in the Witcher 3 not soo much(i understand in the Witcher 3 is much older but come on he's still very good looking). Romances like Triss and Yennefer, You can't romance both, and that suck in a way, I know if you romance both of them, they are gonna trick you and are gonna leave you alone. I really wanted in this game to be able to romance Fringilla Vigo, but the game dosen't give you the option, In the books she's such in love with Geralt, but in the game she almost have a decent role, just to help to catch Eredin in a trap and the story with her it's over sadly. Geralt and Fringilla Vigo in Toussaint memories it would be cool
Characters like Yoanna or Rosa var attre or Tomira or Anna Henrietta, etc. there are soo many, I know this types of encounters make the game more realistic, but it's a game and I don't wanna have limits in this direction
2) Missed quests, failed missions or failed objectives
For a man with ''OCD'' this game is Pain sometimes, for a white i tought I'm doing something wrong, or i've missed something but some quests are just made to be failed, thouse red marks in the quest tab give me epilepsy
epilepsy. Quests like The Woodland Spirit, or Don't let Ciri to hit you with snowballs, because I want to let her win, or The Oxenfurt Drunk or the Gangs of Novigrad because i don't want to help Clever or because i don't find the other way to enter in the some other place etc. etc. etc.
This really needs a fix in the next update, but who knows....
3) Bugs
This one it dosen't bother me so much, Witcher 3 is a very huge game in every way, and i understand the bugs can be here and there, but there are still many of them who really needs a fix
4) The loot and the level up mechanics
This really needs improvements, I'm not gonna enter in to the details, because most of the players know what I'm talking about.
5) The end of Blood and Wine
Soo let's say that you get the best ending possible in evey quest in the game everyone survives, everyone is happy, I would love to be able to get for example the Yennefer ending and In the in the Blood and Wine to have Ciri and Yennefer or Ciri and Triss at home, like a familly it would be cute and cool ngl
6) Extended Ciri and Yennefer reunion, it just my opinion, I think they have such a small reunion just a hug and that's it, i would love to have much more family moments but maybe is just me
7) I want Iovreth in the Witcher 3, it was such a cool character in the Witcher 2 and shame that in the Witcher 3 is inexistent, a quest maybe or a meeting maybe
8) A mod support would be cool, the mods community for this game is huge
9) Combat and mechanics improvements, they are good but they could use
This is such a huge opportunity for the DEVS to make the game even better
I agree with the others Ideas for the next gen update form the comments
I have huge respect for CDPR for creating one of the best( for me it's the best game that I have ever played), I'm sure a lot of players have maybe other wishes.
For me my wishes would make the game beyond perfect, The Witcher 3 is a game that CDPR would never leave him alone, because it's simple a True Masterpiece
I hope CDPR it's gonna listen to their community and take their chance to improve the game even more.
Thank you! <3