Ok, gentlemen, lets look at the possible options:
The hand-drawn portraits of HoI4, as well as the few portraits there are in EU4 and Victoria 2, are, we all seem to agree, superior in regards of aesthetics, BUT:
Victoria 2 portraits are used to easily tell the difference between your generals, and EU4 portraits are used to differentiate between the advisor types. The portraits in Vic2 and EU4 are not representations of the actual people, so I don't think we should be talking about them when talking about character portraits - those are not characters.
HoI4 portraits, on the other hand, do represent the historical characters. But there's another problem - they are entirely *limited* to historical figures. Because of the heavy railroading of history in HoI4 there is no need to make portraits of people who never existed. They can focus their attention on making beautiful hand-crafted portraits, because there are actual references for every single one of them. EU, where most characters are not real people, thus, does not have that option.
Another game with that same problem is Crusader Kings. I don't know how popular this opinion is, but I think that CK3's 3d portraits are objectively an improvement over the portraits in CK2, they get the job done, and they actually look pretty good if you use mods like CFP and EPE. So maybe CK3-style portraits are the way to go for EUV?
Well, as Victoria 3 shows us - probably no. I don't know how they fumbled the portraits so bad, like, brother, you are literally just translating the portrait system over from a previously successful game, all you have to do is model new assets, but no. The faces and the poses and the clothes and the UI integration all suck, and there isn't even a community-made solution to this. This is, most certainly, one of the symptoms of how underbaked Vic3 was on release, and maybe, we can hope, that with EUV they will have more time to port the CK3 portraits properly and have it come out OK in the end.
But maybe there's another way. Maybe it is time we learn something from our long lost son - Imperator: Rome. I:R's portraits are static, and only the upper body is shown. Maybe, by imitating that style, the developers will have to spend less time on posing and modelling and have more time to focus on faces, which is the most important part of a character portrait. Also, that way it will take up less space in the UI while still letting us look at the faces of our history.
So, what do you think, gentlemen? Am I correct or am I really stupid?