After announcing that Larian Studios wouldn't be making Baldur's Gate 3 DLC, an expansion, or Baldur's Gate 4, director Swen Vincke revealed that Larian had actually begun work on planned downloadable content before ultimately deciding to cancel it because the team's heart wasn't in it.
These are the lessons that other studios need to take from Larian; this is why they are successful and will continue to be.