The Jews that followed Jesus and obeyed his commandments are apart of the foundation of the Holy City Heavenly Jerusalem. They help make up the walls and the width of the city. Each one is a precious stone. Precious to the God and his son Jesus Christ. If it wasn't for the Jews, they world would not have known God. The religious and political leaders of Ancient Israel all plotted to have Jesus killed. They who spoke for the people wanted to free a murderer from death and not the Lord Jesus. They chose destruction instead of honor. They killed their own brothers because they acknowledged that Jesus is the Messiah. They kicked people out of the synagoge because they believed in Jesus. Even after all of the signs that Jesus had performed the religious leaders and government leaders rejected Jesus. So if the people did not condemn what their Leaders were doing then they are guilty of that sin as well. That's why the scriptures say get out of her before you share in her destruction. She is the killer of the prophets!!! I personally myself hold the Jews in high regard, if it wasn't for them I would not have known Jehovah or Jesus. But still the New Jerusalem is made up of Jews and Gentiles 144,000 of them.
As far as the tribes are concerned those historical records were lost when Israel was conquered by the Romans. But the tribes referred to in the bible are Jews and Gentiles who display the characteristics of those tribes. That's what I believe. But I respect your opinion and thoughts.