He should do another book on this years draft and every year
Pretty sure he would if he could. It was fortunate that Doug MacLean, who is a media member himself now, seemed to be comfortable with letting an outsider into the draft process. Joyce noted early in his book that he sent out several requests to various teams and was either politely declined or ignored completely.
Joyce's personal scouting does end up on ESPN page, which is about the only thing that's luring me towards ponying up for their "insider" coverage.