Graphic ambiance/ Vegetation

I don't know if this is the right place for this discussion but...Currently we see that newer maps have a much richer vegetation in detail than the maps of vanilla: more grass, size of trees, water, sand, wind, etc. I know that in some other games there is the possibility to increase this even more, so I wonder if it would also be possible to do this in GW2 and whether these new polishes could be implemented by all vanilla. What do you think?

PS.: I'm not fluent in English, forgive me for any mistake.