What I hear in the media is that this original work adds depth, and all the ills of humanity, to Atticus Finch, reflecting aspects of Harper's own father A. C. Lee, something he distinctly lacked as the completely fictional, highly liberated, unbiased, and heroic intellectual he was portrayed as in 'To Kill A Mockingbird.'

I can see that America fell in love with a fairy tale...a corrupted version of Harper's true and very first work. That must've come as a shock to that poor, wonderful soul that she undoubtedly was, living off allowances granted by loving relatives when writing her first work. All this makes much sense to me...and intensifies anticipation.