The point made in the rebuttal about revelation is very powerful. After everything is said and done gods tent is shown to be with mankind. Mankind doesn't live in heaven it lives on earth. All through revelation there distinctions drawn between the things in heaven and the things on earth.
According to to the bible story, before gods purpose was corrupted he had created man on earth with the purpose to fill it and subdue it. that is our place. Since the entire thing is about reconciling creation to its original purpose, ours would be to fill the earth and subdue it.
But I would also point out that the real point, according to Jesus, is to focus on being loving toward all and showing faith hope and love. So it kind of misses the mark to be distracted arguing about what will happen in the future instead of focusing on the kind of people we are - this I would submit, is exactly why religion is a farce.