You're welcome.
I appreciate your interest.
Could you please describe what you believe the "earthly" kingdom will be like in basic terms?
Peter said in Act 3:21 that with the Lord's return that there would be a restitution/Grk apokatastasis/reconstitution of all things which God hath spoken by the mouth of all his holy prophets since the world began. Apokatastasis related to apokathistemi in Mat 12:13 translated 'restored' the withered arm.
Therefore, to understand what it will be like, we must go to the OT Prophets and see what they said.
It's such a huge subject. I'd much rather talk it than type it.
We know from Gen 49 that the Sceptre[kingship] will belong to a descendant of Judah and to Him will the gathering of 'the people'[a phrase used in reference to the people of Israel throughout Scripture] be.
Referenced again in Psa 110:3 and other places. His people[Israel] were not willing at His first coming but will be at His second coming. Psa 110: describes Christ's violent judgement at His coming.
Peter cites the Messianic Psa 2:1-3 in Act 4:25-26. If GOD had stuck to the Prophetic script at that point in Acts 4, He would have poured out His wrath on Israel and the nations according to Psa 2:5. But He didn't pour out His wrath. So, what did He do? He halted the prophetic program for Israel and transistionally began to start something new... 'the gospel of Jesus Christ according to the revelation of the mystery' revealed to and thru Paul for the nations, including individuals from the fallen and set aside nation of Israel. This is a revelation not from OT Prophecy, but something hidden in GOD from the foundation of the world. It was planned all along.
Therefore, the wrath is yet to come and we find ourselves in the Dispensation of the Grace of GOD. All of Paul's letters open with 'Grace and peace from GOD our father and the Lord Jesus Christ'. This is GOD's attitude toward the nations in this dispensation.
What I understand is that the temple will be rebuilt and that Jesus will physically sit on the throne for 1,000 years.
Evidently, there will be a tribulation temple for the events of that period and a millennial temple from which Christ will reign from the throne of David as both King and Priest.
After that I'm not sure what the general consensus is.
Satan will be loosed from the pit for a short while to reveal the rebellious hearts of many who were born during the millennium. The revolt will be smashed, the white throne judgement will occur and then the new heavens and earth with New Jerusalem coming down. Paul says in Eph 1:10 that in the dispensation of the fullness of times He shall gather all things that are in heaven and earth as one in Christ Jesus. Good and evil will be separated forever.
Will it be Jewish Christians or all Jews.
As for the BOC, Paul says that our citizenship is in heaven.
That is the mystery program as distinct from the prophetic earthly program for the corporate remnant of Israel's land inheritance. In the millennium there will be Jews and gentiles who survived the tribulation still dwelling in Adam's flesh. They will repopulate the earth and have the potential to live a thousand years.
Since there are priest will there be animal sacrifices and so on.
GOD always intended for Israel to be a nation of priests Ex 19 and Isaiah 61, mediators between GOD and the nations/gentiles.
He began with one tribe and is waiting for the time when Israel will be empowered to obey Him, thus becoming a nation of priests.
Ezekiel describes the millennial temple and the sacrifices which take place there. There are many objections to this.
I'm tired and I strained at this and didn't cover all that I'd like to.
Maybe pick it up again later in a more systematic way.