Wanted to note a couple of things I noticed pertaining to some of the newly leaked material:
Although it's pretty well known that Michael borrowed from the Carpenters' 'Top of the World' for 'Much too Soon', the pre-chorus of 'Bottom of My Heart' (at 2:00) also borrows from their song 'Yesterday Once More' (specifically the pre-chorus melodies - "all the songs I loved so well" and the BOMH guitar notes)
'Changes' shares similarities with the final minute of 'Cheater' (the change at 4:00). In turn, I've always heard similarities between this section of 'Cheater and 'Leave Me Alone'
'Innocent Man' reminds me a lot of Janet's 'Runaway', which of course was offered by Jam & Lewis to Michael as a potential duet, alongside 'Scream'. This doesn't mean the two songs had any bearing on one another, could just be coincidence.
There's a part of "Remember What I Told You' that's melodically similar to Celine Dion's 'My Heart Will Go On', but this may well be coincidental.