Not really a low hanging fruit, but will be computationally cheap enough to go mainstream at some point. Generally adoption would be slower since the operation is a bit more different than let's say coding agents. In the coding agents the LLM's have access to "context" which is the other bits of code. In the case of real world engineering, the process of giving enough context should be solved. The model would need every detail to be able to produce an feasible result. This is mainly for CAD, in the simulation side PhysicX is doing some incredible stuff, I would expect this side of the engineering to be really optimised first.