Cyberpunk 2077's sequel will boast "the most realistic and reactive crowd system in any game to date" if CD Projekt hits its goals, so no pressure then
I think this is the one thing open world games never seem to make much progress on, so I hope it's not just hyperbole and they actually have something crazy in mind.
But unless they've fired all of their executive-tier staff since the launch of the first CP2077, I'll refrain from holding my breath.
The fact that GTA V's crowd system still stands out for feeling relatively "real" -- a 12-year-old game -- suggests to me that it's more about design and execution than actually needing a lot of technological advancement.