The current Bioware under EA can only do games with repetitive and dull mmo-like combat with extensive monetization schemes. Inquisition gameplay is so bad you're actually struggling to get through it to experience the story. Big studios aren't going to take any perceived risks no matter how many copies BG3 sells. Likewise, Obsidian can't do anything that Microsoft doesn't allow. And they have a console focus on their own Xbox.

The best thing Larian have done for gaming is showing that an (almost) 5e D&D game is possible.

WotC have their own digital game studios too. They should start churning out CRPGs like BG3 now that the example has been set.