Heaven is a soul being close to God, not a place but a condition, as it undergoes an eternal spiritual evolution. Anybody who applies in their life the virtues and guidance of God found in any true religion, "goes to" heaven metaphorically speaking. Hell is similarly being far from God, not a place, but of failing to understand and apply the virtues and guidance from God. Heaven is not Christian centric, not does it belong to any religion.
You leave this world in a condition of your own making and everybody ends up in the same place, but the quality of the experience and the rate at which one progresses is dependant on the degree of ones capacity that has been employed for the benefit of the generality of humankind, not just one's kind or one's religious brethren.
