The quality of the writing and the plotting on Game of Thrones declined sharply once the show outran the books. I’m always ready to be pleasantly surprised, but I’m skeptical about a prequel that will be entirely the product of the screenwriters and show runners, with only broad conceptual guidance from GRRM. The movie and tv people turn out sword and sorcery stuff regularly; it goes in and out of fashion, and most of it is trash. The trick in mixing magical elements into a quasi-realistic fictional world is to keep the magic mysterious and held in check, so that the human characters have real agency. Tolkien managed this. Most of his imitators failed. Even Peter Jackson, who did a splendid job with the first LOTR movies, quickly jumped the shark. The LOTR movies declined in each iteration and, by The Hobbit, Jackson had turned Tolkien’s world into a comic book franchise. GRRM manages the trick in the books, but the show runners are clearly not up to the task. The tv people have a cash cow and they’ll probably run it into the dirt sooner rather than later.
Good point. Hollyweird writers either want to or are told to add the SJW crap into every storyline these days which ruins much of it right out of the gate. If they could (big if) lose that tendency; tv and movies would improve by half.