Via Mark Evanier, an article about some of Kirby’s 1980s animation designs for Ruby-Spears being developed by Sid and Marty Krofft. Includes a slide-show of some of the designs (although a few of them look less Kirby than others). Some of the designs were of course seen in a trading card set in the 1990s, and others have appeared in THE JACK KIRBY COLLECTOR over the years. Evanier also mentions that there’s an art book with some of the designs in the works.
Also, Amazon has a cover up now for THE SIMON AND KIRBY SUPERHEROES. They still have an October release date, but I’m guessing that’ll be moved up soon.