Your analysis is correct. The Jews’ future is tied to faith in God by Messiah Jesus, and their being regrafted into the people of God along with believing gentiles, which now goes under the identity of the Church. This has been the view of the Church for 2000 years.
This article is intended to exposes the dispensation error; that there is a future for the Jews apart from the new covenant Church. In fact, the most interesting part of their future happens after the Church is "raptured" from the earth, just before the second coming.
What I’m presently researching, (without much luck) is what actually happened in Jerusalem during the period of time from immediately after the crucifixion to that period of time (the weeks) after the descent of the Holy Spirit. An author whose reference I’ve lost, (I believe it’s Neuhaus?), has written a new book wherein he professes a theory to the effect that a very large percentage of the Jewish population, perhaps as much as 50%, converted to Christianity and that the resultant, violent, reaction of the Temple hiearchy, (Priests, Pharisees, et al) led to a diaspora of sorts out of Jerusalem, (Christians forced to flee), and massive riots and violence which ultimately led to the Roman crackdown and the sacking of the Temple. What seems to be peculiarly buried is an accurate Roman historical account. There isn’t any doubt in my mind that the events following the Crucifixion were tumultuous, near cataclysmic, and yet, I’m also convinced that the “Authorities”, Roman and Hebrew worked very hard to downplay the events and to censure publication of information surrounding those events.
I ramble, off point as usual. sorry.