Is this a prophetic sign? It certainly is suggestive of several scriptures:
And if ye go to war in your land against the enemy that oppresseth you, then ye shall blow an alarm with the trumpets; and ye shall be remembered before the Lord your God, and ye shall be saved from your enemies.
Numbers 10:9 KJV
And the Lord came down in a cloud, and spake unto him, and took of the spirit that was upon him, and gave it unto the seventy elders: and it came to pass, that, when the spirit rested upon them, they prophesied, and did not cease.
Numbers 11:25 KJV
And it came to pass, when the priests were come out of the holy place, that the cloud filled the house of the Lord,
So that the priests could not stand to minister because of the cloud: for the glory of the Lord had filled the house of the Lord.
1 Kings 8:10-11 KJV
And the Lord will create upon every dwelling place of mount Zion, and upon her assemblies, a cloud and smoke by day, and the shining of a flaming fire by night: for upon all the glory shall be a defence.
Isaiah 4:5 KJV
Whithersoever the spirit was to go, they went, thither was their spirit to go; and the wheels were lifted up over against them: for the spirit of the living creature was in the wheels.
Ezekiel 1:20 KJV
I beheld till the thrones were cast down, and the Ancient of days did sit, whose garment was white as snow, and the hair of his head like the pure wool: his throne was like the fiery flame, and his wheels as burning fire.
Daniel 7:9 KJV
And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory.
Matthew 24:30 KJV
Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen.
Revelation 1:7 KJV
Is Israel being "oppressed" by all the nations of the earth? In a sense, yes.
Is Israel going to war with all the nations of the earth? In a sense, yes.
Does Israel intend to rebuild the Temple? Yes.
Will G-d dwell in and protect the Temple? I believe He will.
Once the sacrifices have been restarted, can anyone stop them? Yes, but at a steep cost.
Are the priests and rabbis expecting to see Jesus coming in the clouds? No; the expected Jewish Messiah is a man, not a deity (see below).
What therefore is the relationship between Judaism and Christianity in the End Times? THAT is one of the most important questions of our times, one which is NOT being addressed by the Christian clergy, with the exception of those (e.g., John Hagee) who believe there are two covenants, one for Jews and one for Christians. What's wrong with that? Read this post and its linked articles and think about its implications: