Three thoughts on this rumor:
(1) It’s a Rumor. The Rowling Library (TRL) is very well connected with Rowling, Inc., and all the fandom outlets that cover it so it can be taken seriously but TRL also carefully notes it is best to wait for confirmation.
(2) It’s Not Credible. If Fortress Rowling chooses a writer unfamiliar with the books and one who has already expressed a willingness and desire to re-invent the series as part of his “adaptation” of it for television, that would mean, because The Presence owns Bronte Studios and is signed on as an Executive Producer, that she will have signed off on another writer having his way with her legacy. And that simply beggars belief; Rowling has been and remains protective of her work as it is adapted whence both her break with Warner Brothers and their blockbuster Double David movies and her invention of her own studio.
(3) It’s Too Credible. Can you say ‘Black Hermione’? ‘Gay Dumbledore, Scorpius, and Albus Severus’? How about ‘Solve et Coagula’ and Rowling’s re-invention of her public persona after the RFK ‘Ripple of Hope’ Award dinner? I find it not only believable but somehow even likely that Rowling will do what she can to make the teevee adaptation of her Hogwarts Saga ‘edgy,’ which is to say ‘offensive and upsetting to the greater audience of people who love the books and watch the film versions on endless loop.’ A further explosion of the Potter fanbase by allowing the teevee Hogwarts to be defamiliarizing or estranging rather than a re-telling may very well be in the cards.
Interesting Times!
A black Hermione being called a “mudblood” and laughed at, even by the good guys, for wanting to free the enslaved house-elves (“They *like* it, Hermione!”) would be something I would dare them to pull.