What happens when the thousand-year reign ends?
The millennial reign concludes with a complete change in the Creation and the Universe, and the believer enters into Eternity. Eternity will operate on much the same basis as the Kingdom: nations will exist again, and Christ will rule and reign, likely from the New Jerusalem.
Les teaches that the millennial reign will end and there will be a complete change in the Creation and the Universe, yet when we enter into Eternity it is going to be on pretty much the same basis as the Kingdom. There will be nations again, and Christ will be ruling and reigning, he thinks from the New Jerusalem. He explains that the thousand-year reign is really just an introduction into the Eternal. It will be another time of testing because, as we come into the Kingdom, it is only believers—Gentiles who believed during the Tribulation under the 144,000's preaching, and the remnant of Israel will be saved. So the thousand-year concept should not cause confusion that the Kingdom is not forever; it will be forever, but the thousand years is a distinct period before eternity.