Whilst all the statements I have read are basically accurate in one area they are incorrect...
Cibachrome / Ilfochrome was the most stable colour print process and no photo print medium will ever last as long as an SDB ( Silver / Dye / Bleach ) print that Cibachrome was, hence why it was the de facto and go to product for selling art colour images.
Regarding it re-appearing... I cannot ever see it, 3 companies are probably technically capable of coating it ( 19 distinct layers coated in two passes ) but the development / cost / volume equation I doubt could ever be reached again, it was hard enough in its heyday.
Simon ILFORD Photo / HARMAN technology Limited