The Division 2 is a great game, but this is why GaaS sucks. Essentially they won't even start work on a Division 3 until after 2022, by then the game's player base could be dead.
The Division 2 is awful visually and is in desperate need of a Next-Gen visual upgrade that amounts to much more than just a simple bump in resolution, framerate or the quick and dirty addition of minor RT effects.
The models, the texture work and overall visual design was significantly worse than The Division 1; and this even after the massive downgrade of D1 from it's initial reveal.