Interesting theory. In order for this to work he'd need to mastermind the operation to fake his death. He would have to, at a minimum:

Obtain a suitable body and some kind of face mask based on his likeness.

Convince the two guards to malfunction the camera, move the newly acquired body into the cell and stage a suicide, then fall asleep.

Find a way to escape the prison, obtaining a suitable disguise to aid in the escape.

Grease the palms of the medical examiner to look the other way when the body is examined post-mortem. May also need to bribe other officials as well.

Obtain means to escape the country (probably the easiest part of this entire operation).

If he can't go back to his Island, purchase another one. Perhaps get cosmetic surgery so he doesn't obviously look like Epstein.

Keep a low profile for essentially the rest of his life.