BG3 would be huge after D&D, they would need to give it a decent budget though which is the scary part
Netflix is not afraid of handing out a decent budget if they think they have something hot. IMO you should be worried about any current shows you like that has a shrinking audience. I'm expecting a Shadow & Bone cancellation soon... Along with it's spinoff getting the axe and them abandoning that 6 season plan for the The Witcher to end on season 4 so they can prop up this Baldur's Gate project.