I too believe Israel as a Nation will surely come to Christ before the End of Time. When it will happen is uncertain, but certainly it will happen. Most probably, Israel's Acceptance of Jesus Christ is after the Anti-Christ and before the Millenium.
From:
https://sljinstitute.net/the-prophets/zechariah/the-conversion-of-israel/
"When I look at the text of Scripture and read “And they shall mourn for him as one mourneth for his only son,” I realize the tremendous transformation that is to take place in Israel. And all of the Abrahams, and all of the Isaacs, and all of the others, and as a nation as a whole, they shall collapse before our Lord Jesus Christ, crying out, “Oh my God, we have crucified our king and our Lord.” And Zechariah describes the tremendous mourning that takes place. Now you know in the book of the prophet Isaiah, we have the exact words that they shall utter, for we have Israel’s penitential confession, in the 53rd chapter of the book of Isaiah. And this is what they shall say at that day,
“Who hath believed our report? and to whom is the arm of the Lord revealed? For he has grown up before him as a tender plant, as a root out of dry ground: he had no form nor comeliness; and when we saw him, there was no beauty in him that we should desire him. He was despised and rejected of men; a man of sorrows, and acquainted with grief: and we hid as it were our faces from him; he was despised, and we esteemed him not. Surely he hath borne our griefs, and carried our sorrows: yet we did esteem him stricken, smitten of God, and afflicted. But he was wounded for our transgressions, he was bruised for our iniquities: the chastisement of our peace was upon him; and with his stripes we have been healed. All we like sheep have gone astray; we have turned every one to his own way; and the Lord hath laid on him the iniquity of us all.”
Oh my God, why have we done it? This is Israel’s sentiment, in that day. Don’t you look forward to that day? I think I’m going to contribute a few tears to that too. They’re going to be tears of bitter happiness, for Israel. They’re going to be tears of happiness, so far as I’m concerned. Now Zechariah describes, in the remainder of the chapter, this mourning that is not only national, but individual and personal. You know when I read this chapter, and this is the last thing I’m going to say to you this morning, when I read this chapter, the prayer that I offer by my bed side, which I offered last night and this morning, is “Oh that I might have some of the tenderness of heart that Israel shall have in that day,” for it seems to me that this is only the magnificent expression of what should be individually true of us when we come to know him, when we realize that it is we, who have crucified our Lord Jesus. It is we who have responded in this way in our own individual lives, until the day when he poured upon us the spirit of grace and supplications.
How may I have a heart like this? Well I know first, that it arises from the divine operation. Only God can make this stony heart of mine like wax. Only he can melt the iceberg of my soul. And it is God’s work. And I know too, as I look at this, that apparently it’s wrought by a faith look at the pierced son of God. For it’s when Israel sees him as the on who has been slain for them, that this great transformation takes place in their hearts. It was on old preacher who said that we ought to look at the cross until all that is on the cross is in our hearts. And this is the thing, it seems to me, whereby God brings us to the place that we respond as Israel responds, and come to know him in the way that Israel shall come to know him. It is only as I see him, and the spirit of God pours upon me, this spirit of grace and supplications. And the evidence will be found in the fact that I shall mourn for my sin before God too, in the intense way that they do.
Someone has said the eyes have been given for two purposes. Eyes are given to see with, and eyes are given to weep with. Have you looked oft to the cross? Have you looked at our Lord Jesus as the one who died for you? Have you seen him as Israel shall see him in that day, as the Lord Jehovah, who so loved them that as with Joseph, he wept that they might come to him? Have you thought of him at the right hand of God, as desirous from his inmost being that you respond to him? And have you come to him? You who are children in this audience, have you put your faith in Jesus Christ? You young people, have you put your trust in Christ? And you adults, is it really personal with you? Do you know him personally? Have you said, “Thank you Lord for giving Jesus Christ to die for me, I take him as my personal Savior”? I wish you’d forget about me. I wish you’d think about the cross. And I wish you’d put your trust in him. And then I hope the spirit of God, as you look at the crucified Savior, shall so move your heart, that you shall be affected by what he has done for you. Shall we stand for the benediction.
[Prayer] Father we thank Thee for this wonderful event that we have been considering, when Israel shall look upon him whom they have pierced. And oh Father, we too are guilty. Wilt Thou melt our cold hearts, and touch us as Thou shalt touch them. And enable us oh God, with the sense of relationship to him. And out of the love and gratitude, which the spirit gives, may we serve him acceptably. May Thy blessing go with us as we part. In Jesus’ name. Amen."