I'm not gonna say what would have pleased MJ. I know he just enjoyed music, he was a fan of all sounds. The 80s wasn't a "style", it was just the way things were really. It's like saying the Neptune's sound was the 2000s, or Dallas Austin or Nirvana was the 90s. Idk what a song like Billie Jean would sound in the 90s or 2000s but I think it's too powerful to not shine no matter what the genre/influence is. So it could easily be made to shine in the modern fashion. The Teddy Riley remake of Dangerous will always shine through in my mind, a great upgrade. Too bad he never did go back to a straight 70s/80s outtake for Invincible. Guess the closest things are Best of Joy and Cheater.