Phobos is already on a doomed orbit, at only 10,000km above the surface it is very low and slightly decaying all the time. Eventually Phobos will be ripped apart by tidal forces in Mars’ atmosphere and (at least partially) crash into the planet.
"eventually" the sun will expand and make the rest of mars valuable beachfront property again.
Time to start selling real estate there. Get in before the ground floor, imagine the profits! All the cool pipples are doing it, you wouldn't want to miss out.
