3d printing is part of the 'digital economy', it is evolving but still embryonic
the notion is 'hardware become software', just make a 3d cad model that's printable, run it through the slicer and print and you get the thing based on the 3d model
new tech would likely evolve along those lines and it may not even be simply 3d printing
it has been evolving all along the cad / cam evolution and 3d printing is part of that. i.e. define the model and the computer and AI 'makes' it
maybe the far future could be 'mind over matters', you think about the model the machine makes it 'imagination become real'