Will Israel keep her preeminent position in eternity?
Yes. The Bible's promise to Israel extends into eternity, and because nations appear in Revelation, Israel will continue to enjoy her preeminence as she did in the Millennium. During the Millennium she is the greatest nation, and that status carries forward into the eternal state.
Les teaches that God's Word is a nationalistic Book, keeping nations in their particular slots through the Kingdom and into eternity. Since Revelation lists nations in eternity, the nation of Israel will continue to enjoy her place of preeminence as she did during the Millennium. In the Millennium she will be the greatest nation, and Deuteronomy 28 says they will not ever have to borrow, but will lend to others, and they will not be the tail. The kingdom promise to Israel in 2 Samuel 7 goes on into eternity.