I think the way this is always framed, especially by Christians that believe the whole of what is written in Rev. is to come, this idea that the Jews are "cut off from salvation", or that God is doing something else for them to be saved in the future is just not the case. I know a LOT of saved Jews, the church doesn't "replace" Israel as the question always frames it to make anyone who disagrees seem anti-Semitic for saying Jesus is the ONLY way, even for the Jews today. For ALL Israel today, Jesus THE Christ is the only way. The church doesn't replace Israel, it is the fulfillment of it, it's what was ALWAYS the plan.
Those of us who are reborn in truth are now part of he promised Kingdom Jesus delivered, on time and as promised. He now sits at the right hand of God on the throne and must reign until EVERY enemy is made a footstool for His feet. The judgement Jesus told them about in Mat. 24, about the end of the "AGE" happened in 70ad when the temple was destroyed EXACTLY when and how Jesus told them it would, ending the Mosaic age. Gods Temple is now us and the very reason that there cannot be another "God's true temple" on earth now. Scripture and revelation is closed, most would agree anyway, and guess what? God never commanded anyone to build another. So a group of Jesus denying Jews that may get together and build a temple in Jerusalem would NOT be building the "Holy place" described in Rev., the time for all that has past. Any Christian should "tear their robes" at the idea of another temple, this is spitting in the face of Jesus as disrespectfully as you could. Please think about this. Everything about the idea of a resurgence of the "old ways" is 100% anti-Christ. I'm not sure how I never saw this before when I was taught this regularly.
But my main point here was that I don't like it when the only option when framing this discussion are, "God replaced Israel" like the Jewish people can not be saved anymore and that they will find redemption in the future through some plan God has for them later. I do believe that Israel is NOW a spiritual kingdom that is made of people from ALL nations, and that the physical Mosaic covenant that involved the temple and animal sacrifice is over and empty now. It all pointed to Jesus and Jesus came, it served it's purpose and now ALL are saved in Jesus. He is King and will reign until the world is His. That's my King!!!! Praise His glorious and victorious name!!!