Sorry OP, but I don't think what you're hoping for will happen. And I say this as someone who passionately loves the old IE games and also loves the Forgotten Realms setting. This game is, and has been from its beginning, a D:OS clone that has the BG title and has Forgotten Realms terminology and D&D rules pasted on to it. There is nothing about the game that in any way looks or feels like a D&D/FR game. You don't even need to get into the game. Right at the character creation screen itself the race models look totally like characters from D:OS and nothing like anything from D&D/FR. If you want IE games nostalgia satisfied, look to games like PoE1/2, P:Km, P:WotR, Black Geyser, The Dark Eye, and even TB games like Realms Beyond and Solasta. Every one of these is much more true to the D&D/FR look and feel than BG3.
I'm thinking of writing WotC to let them know just how much I love them for what they've done to this series.