I'd be ready to let Baldur's Gate go after this one. Making sequels that don't respect the originals, no matter how popular they might become, is a no go for me.
Rather start a new series that will be faithful to the next edition of D&D, and to Faerûn without stupid video gamey tropes mixed in with a grown-up RPG that is trying to tell a serious story.
Perhaps Wizard of the Coast has something like this in mind, hopefully.What D&D actually needs most is Neverwinter Nights 3. Toolset, DM client and endless possibilities. NWN 1&2 are way too dated now.