The Kingdom of God is both an expedition and destination, both a rescue mission in this broken world and a perfect outcome in the new heavens and new earth. A work in progress and a perfectly finished product.
Through Jesus Christ, the Kingdom has come.
And is coming.
God will work His rescue not by destroying the physical earth, but by recreating and restoring it. He will use us, flawed yet treasured humans who are as much a part of the problem as we are the solution, to play the roles that we were designed for in order to bring about the beauty, wonder, and reality of His Kingdom.