Ah lots of interesting discussion.
Gethaena, Underearth Emer is in fact the same as the old announced Loremaster Module (more ore less). While I don't consider it necessarily Shadow World 'canon,' it's a fascinating book, and certainly could exist deep underground somewhere via the Ash Lairs. As far as a revision, that's unlikely. Anything happening with Kabis is even more unlikely.
Cynor never made it past an early draft, and the ms is long lost.
Iron Wind actually has had much of the book text OCR scanned, and I even poured it into an Indesign file. However many of the old layouts need to be scanned. Also, this would be more of a 'reformat' than a real 'Second Edition.' I already have so many irons in the fire with new books and revising my own SW books to do much with it more than a cleanup. I also would feel a little strange revising Pete, Olivia and Heike's work. If you all are interested in an update, please make your desires know to the powers that be and if there is enough interest, we can put it in the pipeline.