"The Church, therefore, cannot forget that she received the revelation of the Old Testament through the people with whom God in His inexpressible mercy CONCLUDED the Ancient Covenant." The Old Covenant is over, fulfilled in the New, and God isn't the one who "took back the gifts." They broke the covenant (Jeremiah 31:31-34). Further, Nostra Aetate, like all the Vatican II documents, are non-dogmatic, pastoral documents (see the Nota Praevia to the Council), and no authentic Catholic doctrine can contradict former doctrine. That's logic 101. If a Jewish person is saved, he is saved by Christ, just like anyone else who is saved.