It is not if Kodak goes under but when. In years passed, my little pre-press/art repro studio spent $10k per month on Kodak film and chemistry. My studio was dwarfed by countless thousands of printers, newspapers and medical facilities all adding millions, if not billions, to Kodak's bottom line. Today they make sensors and supply small quantities of film and printing plates to a dwindling market. It is nearly impossible for a giant like Kodak to get small enough to survive that change in fortunes.
As for our M8s and M9s, well they will not last forever. No doubt Leica will fix or replace sensors for many years after the great yellow father has passed but the day will come when another brand of sensor rests behind the lens of our M10s or M11s. Hopefully, when that time comes, Leica and PhaseOne will have put aside their differences and work together on a truly revolutionary new camera.