These are all the bits I got on unreleased music, not a lot and it's probably stuff that was already said in his seminar:
-"Chicago 1945" and "Dream Away" will eventually get an official release
-"Chicago 1945" was the first song they did after "Thriller"
-MJ called Steve 2 days after the recording of "Chicago 1945" and that's when "Dream Away" came into fruition
-The 1983 demo of "Dream Away" is just a basic piano track with MJ's lead vocal, he said him and Michael wrote the lyrics together and that he played the piano on a Roland Electric Piano