The interview is here.
But what struck me as I was reading it again was the enormous amount of stuff that Morrison has done/planned/partially completed that we've not seen:
Pop Magic - his book on magic. (first two parts here.)
The Invisibles TV series (scripts here).
the if - his novel, still uncompleted.
Lovely Biscuits - his book of play scripts and short stories, long out of print.
Various musical projects (details here).
Screenplays - he mentions one called Sleepless Knights.
Marvel Boy series 2 (&3?)
And then there's the series that have come out that we can no longer get our hands on: Zenith, Big Dave, Flex Mentallo, New Adventures of Hitler, Bible John and the rest....
Maybe one day?