Jesus is not Michael.
Michael "is" the one holding Satan back at this moment. The Holy Spirit will be here because Christ teaches some will be delivered up and it will be the Holy Spirit that speaks through them. He teaches the gospel must be preached to the nations at that time.
Daniel 10:21 "But I will shew thee that which is noted in the scripture of truth: and there is none that holdeth with me in these things but Michael your prince.
II Thessalonians 2:7 "For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way." (letteth -to hold down in the Greek)
Daniel 12:1 "And at that time shall Michael stand up, the great prince which standeth for the children of thy people: and there shall be a time of trouble, such as never was since there was a nation even to that same time: and at that time thy people shall be delivered, every one that shall be found written in the book."
"And there shall be a time of trouble, such as never was." We know this is the tribulation.
Revelation 12:7 "And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,,"
Again, this is Michael fighting with the devil, after this future war he is cast down with his angels. This is future, not his previous rebellion as the verses below state.
Revelation 12:8 "And prevailed not; neither was their place found any more in heaven."
Revelation 12:9 "And the great dragon was cast out, that old serpent, called the Devil, and Sa'-tan, which deceived the whole world: he was cast out into the earth, and his angels were cast out with him."
Revelation 12:10 "And I heard a loud voice saying in heaven, Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night."
Revelation 12:11 "And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death
Here is the word of their testimony that Christ teaches in the gospels. So we see this is future.
Revelation 12:12 "Therefore rejoice, ye heavens, and ye that dwell in them. Woe to the inhabiters of the earth and of the sea! for the devil is come down unto you, having great wrath, because he knoweth that he hath but a short time."
We know Christ shortened the time for the elect's sake.
Revelation 13:8 "And all that dwell upon the earth shall worship him, whose names are not written in the book of life of the Lamb slain from the foundation of the world."
The same book of life talked about in Daniel 12.
The scriptures show that Michael has great importance in end time prophecy but he is not Jesus.