Free will and the Millennium and what will we do

To answer your question about Free will and the millennium, there will some type of free will and choice during the millennium, but not like we have.  Besides of human nature (both them and us will have), they will not have to put up with Satan and his servants as we do because they will be put away for a 1000 year.

(Rev 19:15 KJV)  And out of his mouth (Jesus) goeth a sharp sword, that with it he should smite the nations: and he shall rule them with a rod of iron: and he treadeth the winepress of the fierceness and wrath of Almighty God.

(Psa 2:8-12 NIV)  Ask of me, and I will make the nations your inheritance, the ends of the earth your possession. {9} You will rule them with an iron scepter ; you will dash them to pieces like pottery." {10} Therefore, you kings, be wise; be warned, you rulers of the earth. {11} Serve the LORD with fear and rejoice with trembling. {12} Kiss the Son, lest he be angry and you be destroyed in your way, for his wrath can flare up in a moment. Blessed are all who take refuge in him.

(Rev 2:26-27 NIV)  To him who overcomes and does my will to the end, I will give authority over the nations-- {27} 'He will rule them with an iron scepter; he will dash them to pieces like pottery' -- just as I have received authority from my Father.

(Zec 14:17-19 NIV)  If any of the peoples of the earth do not go up to Jerusalem to worship the King, the LORD Almighty, they will have no rain. {18} If the Egyptian people do not go up and take part, they will have no rain. The LORD will bring on them the plague he inflicts on the nations that do not go up to celebrate the Feast of Tabernacles. {19} This will be the punishment of Egypt and the punishment of all the nations that do not go up to celebrate the Feast of Tabernacles.

(Micah 4:1-3 KJV)  But in the last days it shall come to pass, that the mountain of the house of the LORD shall be established in the top of the mountains, and it shall be exalted above the hills; and people shall flow unto it. {2} And many nations shall come, and say, Come, and let us go up to the mountain of the LORD, and to the house of the God of Jacob; and (Jesus) he will teach us of his ways, and we will walk in his (Jesus) paths: for the law shall go forth of Zion, and the word of the LORD (Jesus) from Jerusalem. {3} And he shall judge among many people, and rebuke strong nations afar off; and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up a sword against nation, neither shall they learn war any more.

(Phil 2:10-11 NIV)  that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, {11} and every tongue confess that Jesus Christ is Lord, to the glory of God the Father.

(Acts 3:21 NIV)  He must remain in heaven until the time comes for God to restore everything, as he promised long ago through his holy prophets.

(Luke 19:17 NIV)  "'Well done, my good servant!' his master replied. 'Because you have been trustworthy in a very small matter, take charge of ten cities.'

 (Isa 11:9 NIV)  They will neither harm nor destroy on all my holy mountain, for the earth will be full of the knowledge of the LORD as the waters cover the sea.

 (Hab 2:14 NIV)  For the earth will be filled with the knowledge of the glory of the LORD, as the waters cover the sea.