The NWN "port" of BG1 and BG2 was already silly, dont need another such project.
This. I've played the BG1 module for NWN for about an hour and really didn't see the point of it. While I appreciate the effort and passion put in those projects, I fail to see who is the target audience. Maybe people who never played those games and want to experience the story without having to buy another game, or something like that. But for those who already played, there's nothing fresh, nothing new, no surprises, nothing to look forward to. You're basically playing an arguably worse version of the game. And the same would probably happen in a port to BG3 engine. It would be "cool", but ultimately a futile endeavor.