I hate to keep saying this because I know they won't listen or take it into consideration and I sound like a broken record but is this too hard to do?
We know that they have at least something.....
Oct/Nov 2023- Release the Thriller documentary (no 40 title, just maybe Michael Jackson's Thriller? or Optimum Productions presents Michael Jackson's Thriller)
Nov 2023: Make a post and announce you are releasing a excerpt from the Girl Is Mine sessions in the Thriller doc. Put it on Facebook, Twitter account, the official MJ YouTube account, title it "Michael & Paul (From "Michael Jackson's Thriller).
Dec 2023: Reissue the Making of Thriller in 4k (or 1080) from the masters or high quality tape , set up pre-order links for a release in Jan 2024.
June (2024): Announce a release of the Victory Tour concert as a collaboration between the Jackson Brothers, Epic & The Estate (just in time for the 40th anniversary but don't use the 40 in the title) featuring the live (remastered) audio and Blu-Ray. Post: Michael Jackson- Human Nature (Live 1984) as the first video for the promotion. 2CD/DVD. Set up pre-order links...
July 5th: Put out a second video, Michael Jackson & The Jacksons- Off the Wall (Live 1984). Put a unreleased tour photo on the official media accounts and write a caption.
July 19th: Put out the last video until the release date, Michael Jackson & The Jacksons- This Place Hotel (Live 1984)...
October (2024)- Release the Victory Tour package......
If they really want to hold the fans over until the biopic, this is the way to do it.