That's exactly what I think will happen. 3D is endgame for AI. 3D models are deterministic objects that provide continuity, while AI does non-deterministic abstract generation(thinking) + plans action plan for these 3d models.
Recent news on major AI scientists starting "world AI" companies confirm this trend.
So 3D soon will become a very important tech even compared to today.
What blender and other CGI software gets for free is continuity. The 3D model does not change without explicitly making it change.
Until we get AI which can regenerate the same model from one scene to the next, the use of AI in CGI will be severely limited.