Out of all sci-fi/fantasy ideas out there, I'd never have thought Star Wars: Attack of the Clones would show up as a possible future. But as we are making rapid advancements in robotics and AI on one hand, and biotech on the other, and the relevant fields are controlled by different corporate interests, clones fighting droids doesn't seem so out there anymore.
Give a normal person some steroids and strength/endurance training exercise regiment. You will have a person that is 80~100% stronger then your average male within 7~10 months. A lot quicker and cheaper then waiting 20 years for a embryo to grown up.