I wish they include WBSS, Billie Jean and The Lady In My Life extended / 12# versions.
Also, I wish they put video mix version of the song Thriller - the refrain doesn't hit right away but way later after some damn good instrumental. I remember when I was a kid and when I saw Thriller video for the first time, I wondered why the hell there's no audio of the video mix available on any audio support.
Actually I had the same wish for Smooth Criminal video with extra phrases, TWYMMF video too, and many other videos. I was frustrated (and still am) not to have them officially released on audio support and in excellent quality of course.