What if cosmic inflation is God looking at the Big Bang and going "Hey, cool!" The universe grew vastly in an instant because God was really paying attention to it. The universe continues to expand because God is still interested. If He gets bored, the universe closes and heads toward the Big Crunch. If He really gets tired of us, the universe just disappears.
Should we be worried that God might have ADD?
Joy is the purpose of the universe. Joy is not the absence of pain; they're something like orthogonal. Pain can get in the way of joy, but fear -- trying too hard to seek out safety, to avoid pain -- cuts us off from joy. If we let our fear rule us, and we succeed in such safety that we no longer have joy, then God will get bored with us. Do we individually disappear, or does it only mean the whole universe disappears if we all hide in our safety?