I think this may be an overstatement of what you can do with DNA if, as the BBC suggests they are going to compare the DNA from the skeleton with DNA of someone alive today who is apparently descended from R3s sister...
Population of UK in 1400s is subject to much debate but let us say, for arguments sake, that there we're 500,000 people alive then that have living descendants today.
Work it back the other way and work out how many ggggggggGMs and GDs you had in 1500.
Around a million I reckon.
You see my problem. Most of us with UK ancestry are probably descended from most of those alive in R3s days. So Mr so and so who has busily traced his ancestry back to very important people in the 15th C has any more of R3's DNA than you or me.
So methinks those involve doth delude themselves. There is a mini industry springing up trading in this kind of nonsense, talking about people being descended from biblical figures etc. and being able to prove it with DNA.
The only way they could prove it was r3 would be to dig up a very close relative .
There is no proof that r3 had scoliosis. He was a very able knight so it seems rather unlikely. It was a bit like being a serious athlete riding into battle with all that kit and then using it for hours on end.
I recently enjoyed reading a number of historical novels about r3 and his relatives, all of which had their own analyses.