Among the things already stated, I would also like:
The original version of Private Dancer with Mark's vocals.
A studio version of Two Skinny Kids.
Releases of the soundtrack music of Hooves of Fire, Charles and Diana wedding, and all the ques from his other film soundtracks, I remember a lovely acoustic finger picking track in the Metroland film, which is not on the album.
All the other one off things, for example The Ghost of Fafner Hall.