This one can be tricky to explain, but I'll try my best (!).
Heaven wasn't created because God suddenly realized he needed a place to house Christians after they die. Heaven has always existed because it's the place where God lives.* Since God has no beginning and no end (Exodus 3:14), heaven has no beginning and end too.
What is heaven like? You can read more HERE.
To answer your question directly: There cannot be the absence of heaven, because that would mean there would be the absence of God.
Hope this helps!
[Answered by Pastor HM]
*In the Gospel of John, Jesus himself talked about coming "from heaven" (see chapter 6). Heaven was Jesus' home. He lived there "in the beginning" and will continue to live there forever, with those who are saved.