Trying to decipher the hidden language of (non coding) DNA is like aliens landing on earth knowing nothing about earth or humans, entering a public library, discovering racks and racks of printed text and trying to derive meaning out of it. There is meaning of course. But making sense of it is another matter. Maybe AI will provide that starting point.
At some point, and sooner rather than later, DNA will be read by computers and you will have a printout and picture of the person just from a DNA sample, with no comparative sample needed.
The computers will be able to tell you everything from eye color to shoe size.....................