Jesus never said that his followers would *go* to “Heaven” per se. He repeatedly indicated that the “Kingdom of Heaven” would *come* to them. To me, that seems like a pretty big difference. As far as I can ascertain from my reading, Heaven itself is a realm reserved strictly for God and His angels. Jesus said that no one has ever ascended there. (John 3:13) I suppose he would later become the first, if not the only, exception. (Elijah is disputable. 2 Kings:2)
Have you ever wondered why you did not rapture and go to heaven the day you became a Christian? It is because God has work for you to do here on earth! Having gone to heaven, Jesus expects you to be his body on earth. You are his hands, his feet, his voice.