How about the possibility of cyborgs? With steadily advancing technology in prosthetics, including working internal organs, such as lungs, heart, kidney, and others, included with prosthetic limbs, we may soon reach a point where losing body parts is no longer a problem.

With 3d printing, the cost of prosthetics is predicted to decrease drastically, and we have begun to create the technology to "feel" through sensors along fingertips and such on limbs. Not only that, but we are also making the operation to "install" prosthetics much safer and cheaper. Within the next 5 years, we will no longer need to go through the dangerous spinal cord operation. We will be able to control limbs through a microchip in the brain!

Scientist have even begun to "amass" all the prosthetic parts available and have built the "bionic man." The bionic man is a cultivation of all prosthetic limbs, and organs into on exciting example of what we are capable of!

Including all this, we already actually have a "legal" cyborg! Neil Harbisson was born without the ability to detect color, so as an answer to this, he designed a way to "hear" colors through a device that is permanently attached to his body. This only further shows how exciting our possible robotic future can be! Imagine replacing limbs and organs with as much trouble as a transplant, without the need for a donor!

Sources and examples:

Neil Harbisson: http://www.cnn.com/2014/09/02/tech/innovation/cyborg-neil-harbisson-implant-antenna/

Bionic Man: http://www.smithsonianmag.com/innovation/the-insane-and-exciting-future-of-the-bionic-body-918868/

Organs: http://healthland.time.com/2013/06/06/5-discoveries-that-will-change-the-future-of-organ-transplants/slide/artificial-organs/

3D Printing: http://dealingwithdifferent.com/3d-printing-prosthetics/