If you attended the PlayStation Experience this weekend in Las Vegas, you may have been able to attend to this panel in person. If not however, you can learn all about the evolution of Nathan Drake for Uncharted 4 in this video.
The video is an hour long, but if you ever wanted learn an exhaustive amount about Nathan Drake's arms, or building a human being that technically doesn't exist, check out the video below.
For more on Uncharted 4, you can check out some gameplay showcased during the PlayStation Experience.
(Please visit the site to view this media)