Roll away the dew.
It is my fervent hope for BG3 to parlay into an ongoing D&D game series that is more about the city of Baldur's Gate and the greater Sword Coast region, expanding on the Hidden and the mind flayer lair as part of that bridge, and only touch on the Bhaalspawn saga in more than a "godlings tore up the place years ago" kind of way.Ah well. It's nice. They're picking up on one of the dangling Baldur's Gate plot threads! Classy!
("The Hidden" never got explained, and the Illithid base in the Temple District Sewers really never got explained)