Actualy it is ...
For one all curent work would be wasted. :-/
And for two, those zones that are in Baldur's Gate 3 are too small to split them ...
Can you imagine Blighted Village being its own zone? :-/
You run across is in less than 2 minutes, and no matter where you move from it ... loading is awaiting you. :-/
That is not how i imagine good design to be honest.
I still dont understand why cant we change Race for our hirelings.

Lets us play Githyanki as racist as they trully are!