Hello Jonathan,
There would be two Israels then?—God's Israel, and another "God's Israel"—one the international community of believers, Jews and Gentiles, and then a different one tied to the land and of strictly Jewish blood?
A Jew myself, I hope for a large conversion of Jews to their Messiah both from the political State of Israel and world Jewry, but these Jews would then be joined to the international Israel of God, at this point a spiritual kingdom, the capital of which is the Jerusalem above, heavenly Jerusalem.
As for a restoration "of ethnic and National Israel", the covenant with Israel was annulled, and as a geopolitical nation and people there is no longer a ‘covenant’ entity called Israel.
I am a proponent of the Amillennial view.