Fans of the source material will be pleased, as there were several differences between the film and the graphic novel– to the point that writer Alan Moore requested that his name be removed from the film’s opening credits.
The series is said to be an adaptation of the graphic novel, which makes it sound as though this will be a retelling of the same story the Wachowskis did with the V For Vendetta film.
With more time to tell the tale, and perhaps less artistic liberties taken, it’s possible this new series (should it get produced) will be a more accurate telling of the original story.