Israel's Role in the New Jerusalem

"'The time is coming,' declares the Lord, 'When I will make a new covenant with with the house of Israel and with the house of Judah...  '...when this city will be rebuilt...'  ...'The city will never again be uprooted or demolished.'" (Jeremiah 31:31, 38 & 40).*

Israel is likely to have a major role in the building of a physical New Jerusalem, because: 

1. Israel is blessed by God.  See: Genesis 12:1-3, 26:24, 28:13-15; and, Acts 3:17-26.
2. Through Israel all the people on earth are to be blessed.  See Genesis 12:3, 28:14b.
3. Covenant to restore the land Isaiah 49:8-13.  "...I will keep you and will make you to be a covenant for the people..." (Isaiah 49:8).  Return from Babylon, Balfour agreement...events tend to repeat over and over again in the Middle-East.
4. No peace in the land Israel now occupies.  Look for a change in how Israel views Jerusalem!**
5. Not enough room, see Isaiah 49:20+.  Gentiles will help the Israelis, see Isaiah 49:22-23. 
6. Jesus is a descendent of David.  Thus Christians are adopted children of David, see Galatians 4:4-7 and Ephesians 1:3-10 (note verse 5).  Israelis will now understand the role of Jesus.  Jesus is the "sprout from David's line" in Jeremiah 33:15+.
7. The descendants of David are God's servants in Jeremiah 33:22 -- Both Jews and Christians!  "...If anyone wants to be first, he must be the very last, and the servant of all." (Mark 9:35). 

*Some Christians view Jeremiah 31:31-40 as being a spiritual city founded by Jesus.  Jews are more likely to look at this passage as pertaining to a physical city, as outlined in Revelation chapter 21.  Christians will be involved, see Jeremiah  33:15-26.

**There seems to be a growing consensus that the Arab and Israeli conflict in Israel is a root cause of unrest in the middle east, and this unrest is spreading conflict throughout the world.  Thus it is in everyone's best interest to find a solution that satisfies all parties -- moving believers out of the land they now occupy to a "peaceful city" in the heavens.  Both Old Testament and New Testament types of believers would view the space station, that sails above troubled vapors in the sky, as somewhat like the Ark God gave Noah, to sail over troubled waters on the earth.  It will be like the call God gave to Abraham to leave this place and go to a land I will show you.

It is possible Space Station(s) built at the beginning of the New Era are not quite the same as described in Revelation chapters 21 and 22 - see topics under New Era.