Better not be a Jonestown. My mom is still in the Sea Org.
Scientology isn't an Apocalyptic cult. It doesn't make sense that Davey would see annihilation as an end game. I think he's too much of a narcissistic sociopath to want to kill himself if the jig is up. I can see him "defending the compound" - but I don't see him taking out his own minions.
However, given his fits of uncontrolled rage and anger, I do see people getting hurt now that we're in the "end times." People were getting hurt in the relatively good times. I fear for those closest to him. Especially Lou.