In Icewind dale and the NWN2 expansion Zehir they group the races with common origin in the same dialog trees, like the races of the underdark (drow, duergar, svirfneblin,...) and all elves or half-whatever share dialogues.
It was nice because you can see dialogue that could refer to your character personally, but those games were not fully voiced. I do not know if we are going to see that much differences in a dubbed game like BG3.
