Skyrim is sitting at 42 million sold. BG3 won't come anywhere near that. I am skeptical it can reach the more than 10 million in sales for DA:I.
I don't know what their long goal aspirations are, but you can see them maturing into what a Bioware was. There is no doubt they could sell more if they moved into a Dragon Age type POV, it is just more approachable to a larger audience. But I have no idea if they even want to go there, but looking at BG3's advancements over DOS2... they seem to be headed that way.