Elon Musk demonstrates designing parts for a rocket his company could use just with hand gestures using a Leap Motion controller. After that, we move to a 3D projection of the part, free standing glass projection just like Iron Man, and even an implementation with the Oculus Rift VR headset.
Not only the world of design but the world of gaming. Just image stepping into your game, crafting stuff and print it out on a 3d printer. Or social networking, google hangouts could be a virtual place you could goto just by putting the oculus on your head. Even in developing software i see use of 3d modelling. How many times i got “sick” of al the lines in models they draw in Visio, they really are bound in a 2d world and an extra dimension would really, really help out.
Cant wait for the future!