Of course, life on Mars is going to be a constant minute to minute challenge for survival, and there is no golden parachute over there if things go badly.
He will never go.
And, you know, even if everything works out, all plans that have been suggested for now are one-way trips. I know there are a few people who'd be ready for that, I doubt Musk is one of them.
I can see there being one secret escape pod for the crew of like 12 or so. It would be called The Golden Parachute. And as soon as the slightest problem occurs, he jumps into that shit and rockets back to earth.