Should you create a worker role it would run on a separate VM, not the same as your web role and that would defeat the whole idea since you can't get to another VM without a carefully crafted interface and such interface would definitely be an overkill for this task.
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.