Definitely, eventually things will all have weights, as far as i know (using tesla as an example since they've taken this the furthest) they do object detection to find pedestrians or cars for that matter. Taking it further and adding weights to the object and then further into damage prediction would be a great way to extend that.

However I'm not sure what advantage it would have if AI driven cars' accident rate falls so low that collisions are rare, outside of weighting human/human carrying things vs property.