I don't see any "different expectations" for any Jew or Gentile who is brought to faith in Christ. It's the exact same path which each man walks accordng to the times and boundaries and circumstances God has set.
I don't know what God's plans are for the Jews who do not receive Christ. I trust in His perfect mercy for them while believing that in this life a man must be born again to Christ in order to be saved. Beyond that, it's God's business.
Different allowances for the walk in Christ once in Christ.
Jews are not forbidden the continuing of their uniquely Jewish customs, and Gentiles are not required them.
Also, don’t you think the anti-you-know-who is also a prophecy requiring interpretation?