Source: trust me bro
I’m sure the estate pulled out the slave tapes for The Toy/She’s Trouble/whatever else from Quincy’s secret vault to be able to release it on Thriller 40. (This is sarcasm, my point is we don’t need the slaves to get a release) Also we know now that the entire Thriller, Off The Wall and Bad albums, etc. (At least released songs) was transferred because they are leaked or were shown online
. We even had a tape transfer of an EARLY VERSION of I can’t help it leak online lmao.
Also wasn’t there some story about MJ losing the tapes to Scared of the Moon and the only reason we were able to hear the song is because they had a downmix on a casette that they overdubbed with strings, if giving the tapes to MJ meant them getting lost, no wonder Quincy would’ve wanted to keep them safe lmao. If that’s actually true anyway.
Still, we know that the important released stuff was transferred, so I don’t see why Q would be holding on to demo slaves, as if that even matters for a release. Maybe if they went the Xscape remix route again and needed them for vocals only lmao