Michael was in the entertainment industry for over 4 decades, of course there is a lot of stuff out there through a long career that has not been released. We're going to have to hold our horses a bit and take things as they come. I get it, I get anxious to get more footage, hear new things etc.. But at the same time we've gotten a lot since 2009 (I don't need to list the various released stuff).. As this thread is titled, there are a lot more things in the works, and once that is over time to time we will continue to get things..
We can't have everything NOW! They still have to run a business, there job is to always have it grow - not have a large spike and drop off. releases need to be plotted accordingly with a lot of thought.
It's not like the world that other 'legends' passed in where they can simply release live albums one after another and it keep selling.. having growth in the music industry financially has shifted to push artists to physically do more simply because people don't buy music just to buy as much as before.. Michael is not here to do that! so they need to think around that.
They are not just thinking of making us super fans happy, they are sustaining and trying to grow a business.