The antichrist is not satan.The words (Thousand Years Expire) would be equivalent to the words (He who now letteth will let) is it speaking of a literal earthly thousand years "NO" its symbolic speech with the same meaning, a time when Satan is loosed in two different explanations
I have done my best to explain (Thousand Years) as being a figure of speech, one day is a thousand years (Not A Literal Thousand Years)
The Horse Is Dead
Revelation 20:7KJV
7 And when the thousand years are expired, Satan shall be loosed out of his prison,
2 Thessalonians 2:6-8KJV
6 And now ye know what withholdeth that he might be revealed in his time.
7 For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way.
8 And then shall that Wicked be revealed, whom the Lord shall consume with the spirit of his mouth, and shall destroy with the brightness of his coming:
The wicked Thes is talking about is here...
Rev 19:20 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.
Satan gets sent to hell here...
Rev 20:10 And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.