Nothing. Provided she was Church of England, knew how to behave, and was prepared to snip infinite numbers of ribbons, listen to infinite numbers of inane speeches of welcome, and put up with Harry (who is a good honest lad but not the world's brightest or most sensitive specimen) she'd do just fine.
Nothing would happen,its 2012. As long as she was decent by royal standards she would be accepted. My guess is Harry will marry a tall,white blonde from a rich family.
Look at all of his ex-girlfriends (Chelsy Davy,Florence Brudenell-Bruce,Mollie King etc.) They all look the same and he certainly has a "type" but,who knows? Maybe he will surprise us! =).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.