The process could reveal his hair and eye colour, his susceptibility to conditions including Alzheimer's disease and diabetes, whether he was lactose intolerant, and whether the scoliosis that contorted his spine was genetic. It could also show if any of the surviving portraits, all completed years after his death, are accurate.
The article says Richard III will be the first famous historical figure to have his genome sequenced, but everyone knows that the actual first was Tupac so they could bring him back at Coachella that one year.
I know for one that I can't wait to find out if Richard III was lactose intolerant. Will we be able to tell if he smelled asparagus in his pee, too? Entire history books await rewriting.