One thing I'm sure of - if in the unlikely event there is a god and therefore a heaven, there will be a lot more atheists there in heaven than religious leaders and zealots. Religion is nothing more than bronze age human understanding of the world and themselves which eventually by natural EVOLUTION, they began to realise that this was a brilliant way to control the masses through thought, action, politics and finance - even controlling human sex and sexuality!~! - and the masses are still falling for this twaddle. The evidence of evolution is overwhelming where as the evidence for god is non-existent.We can still find holes in the evolution theory but they are minor whereas the god theory has no legs to stand on!! *I mean "god' in the judeo-christian islamic way as being an all knowing all seeing judgemental god. god in the way of being an energy/force/creator rather than the j/c/i type of god is something entirely different and imo a reasonable alternative to atheism. The "moral" god theory is just too ridiculous.
