...but when we come to certainties and absolutes on future events we are trending toward divining or fortune telling.
You seem to be more interested in making false accusations than dealing with what is actually in the Bible.
Accusing Christians of divination and fortune telling is slander -- plain and simple. If that is what you enjoy fine. You will give account.
When Christians study the Word and discern God's plans as revealed by Him, that is neither divination nor fortune telling. The Bible reveals that God has a future plan for redeemed and restored Israel. And that will not go into effect until the Church has been completed. That is exactly what Paul stated in Romans 11:25-27:
For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in. And so all Israel shall be saved: as it is written, There shall come out of Sion [Jerusalem] the Deliverer [Christ], and shall turn away ungodliness from Jacob [Israel]: For this is my covenant unto them, when I shall take away their sins.
What does this passage teach us?
1. The partial judicial blindness of Israel to the fact that Jesus of Nazareth is their true Messiah is a mystery. One should have expected every Jew to believe on Him, but such was not the case.
2. Gentiles Christians are not to be high-minded and wise in their own conceits when speaking of unsaved Jews during the Church Age, because God does have a future plan for Israel.
3. Blindness in part means that there will be Jews saved during the Church Age and will be a part of the Church. These are the Messianic Jews we hear and read about. The Church began with saved Jews in Jerusalem, but eventually there were more Gentiles added to the Church than Jews.
4. "Until the fulness of the Gentiles" is a reference to the fact that God has a specific number of Gentiles in mind before the Church is completed. When the full measure of Gentiles "be come in" or are gathered into the Church, that will be the end of the Church Age and will culminate in the Resurrection/Rapture. After that the Marriage of the Lamb will occur, followed by Christ coming to earth "with power and great glory", and accompanied by all His saints and angels.
5. However Christ will return to earth at least seven years later, and AFTER His Second Coming He will gather all Jews worldwide to Israel. He will send forth His angels as noted in Matthew 24.
6. Following that one-third of all the Jews will be saved (as noted in the OT). But since we see that "all Israel" is saved, it can only mean that Jews from each and every one of the 12 tribes will be saved. That would encompass "all Israel" but not every living Jew at that time.
7. Christ will come to the Mount of Olives (which will split at that time) and deal with His enemies at the battle of Armageddon. The Antichrist and the False Prophet, along with all the enemies of Christ, will be destroyed at that time. Then Jesus will turn His attention to the Jews.
8. Christ will therefore be the Deliverer of Israel and the Jews, following which there will be genuine mourning and repentance among believing Jews. They will finally recognize Christ as Yeshua ha Mashiach (the one whom they pierced), and He will "take away their sins". All those redeemed at this time will receive the Holy Spirit and be born again.
9. After this Christ will establish His millennial Kingdom, which will include a redeemed and restored Israel on earth, with all 12 tribes settled in the land of greater Israel (from the Nile to the Euphrates). For details see the prophecy of Ezekiel.
10. "For this is my covenant unto them" means that what was promised to Abraham, Isaac, and Jacob ("the fathers") through the Abrahamic Covenant will definitely be fulfilled. Which also means that Replacement Theology has no validity.