Well Satan goes to, and gets booted out of heaven constantly. That is an ongoing phenomenon. The point is that Satan is not going to purposely introduce himself before the Second Coming.
For one reason, the world as a whole is convinced Satan and God are not even real, but made up stories. If Satan held a press conference, then people could start to reason that God indeed does exist.
Secondly, no one knows when the Second Coming will happen. Satan is not warned ahead of time to prepare. Thus messing up the first point.
Revelation 16:8-21 KJV
8) And the fourth angel poured out his vial upon the sun; and power was given unto him to scorch men with fire.
9) And men were scorched with great heat, and blasphemed the name of God, which hath power over these plagues: and they repented not to give him glory.
10) And the fifth angel poured out his vial upon the seat of the beast; and his kingdom was full of darkness; and they gnawed their tongues for pain,
11) And blasphemed the God of heaven because of their pains and their sores, and repented not of their deeds.
...
21) And there fell upon men a great hail out of heaven, every stone about the weight of a talent: and men blasphemed God because of the plague of the hail; for the plague thereof was exceeding great.
Revelation 19:19-21 KJV
19) And I saw the beast, and the kings of the earth, and their armies, gathered together to make war against him that sat on the horse, and against his army.
20) And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone.
21) And the remnant were slain with the sword of him that sat upon the horse, which sword proceeded out of his mouth: and all the fowls were filled with their flesh.
This is Jesus, on His white horse, come to make war. And the armies of the earth are gathered to make war against Him.
They seem to know what's going on.
Much love!