When the pole star changes, which happens about seven times every 25,900 years, anciently that change was called a New Heaven. Polaris represents a change to a new heaven.1 There will be a New Heaven and a New Earth when Christ returns. All of these are given, as Christ said in Genesis 2:6, for signs, and for seasons, and everything testifies of Him.2
1 “Signs of the Second Coming, “April 7, 2016, blog post.
2 500th Year Reformation Talk Three, 16, Atlanta, GA, Nov. 16, 2017, Q&A.