Our team works on goal directed design as well, but at the moment it's less of an interactive optimization tool and more of an involved job running process a la Optistruct. One of our fun projects was a drone body as well :)
link for the interested: https://autodeskresearch.com/projects/dreamcatcher
I think it's key for optimization to be fast so that the designer can get a feedback loop going between the computer and the ideas in their head. Would love to talk about whether geometric programs might help Autodesk generate topology faster.
Near future stuff is probably a real-world component input (optimized shopping), and making things more flexible so you can drag and drop something together from components.