How do Falling and redemption affect Roles?
There is no effect. Some Roles may become unusable or unpalateable after this change in status, but they will still be available! Of course, Judgment and the Game, at the least, will tend to take action to secure such a “compromised” Role – such as by capturing the turncoat (if possible) and plonking some other celestial into a lookalike vessel. Or just leaving a dead body somewhere. If a Role is destroyed by one’s former side, the points are not returned – though a Superior might grant an equivalent one to a PC.