In my hypothetical question, the Christians are the ones who believe in the Rapture. As in is it reasonable to expect some sort of posthumous planning for the ones left behind?
Freegards
If REAL Christians are suddenly gone, what's left? A world without Christians? There would be chaos. You could leave behind property or money, but there would rise up, immediately, a predatory government far worse than anything now, which would probably go for full enslavement.
So what could you leave that would actually be effective, is the real question. What could be kept by those you left it to? When the Hillarys and Bernies of the world would be seizing everything? I don't know.