Top 10 is always good.
But I do hope they change strategies and forget about anniversaries. It is better to concentrate on song releases periodically on streaming services accompanied by possible studio footage of said song and interviews with the people who worked on it so we got an idea what it is all about and what MJ's vision was for the track (all for YouTube). This means possible finished versions of the song, demos, extended versions, alternative takes, alternative vocal takes. Just everything. They could stretch this for years if they release a song every 4 months...
Then after a couple of years you could combine those tracks on a physical compilation album for fans.
I don't know how they make money out of that though
but I guess they earn a lot of money anyway through catalogue sales, airplay, merchandise etc