The fate of the Jews is prophetically indicated in Genesis 33, when the older brother Esau is reconciled to the younger, and accepts his gifts.
Jews are our older brothers in the faith. Consider the recurring biblical dynamic of older and younger brothers: Abel is favored over Cain. Isaac is preferred over Ishmael. Jacob is preferred over Esau. David (destined for kingship!) slays Goliath -- while fighting naked! -- not his older brother. You can't dismiss this as coincidence. Similarly, in the NT parable of the prodigal son, favor comes to the younger son who was lost, to the dismay of his older (law-abiding!) brother.
And Muslims believe that Islam supercedes Christianity.