I think Christ has already taken office as King of all kings.
OK, we'll move on. In Eden there were lots of trees the fruit of which was good for food, but there was one tree God put off-limits.
Why?
The fruit of that tree is deadly.
Also, in Eden was the symbolic tree of live, the Ten Commandments.
In spite of God's instructions Eve was deceived and partook of the fruit forbidden to them.
Adam was not deceived, he simply chose to disobey.
Do you not know that to whom you present yourselves slaves to obey, you are that one’s slaves whom you obey, whether of sin leading to death or of obedience leading to righteousness? (Romans 6:16)
Adam yielded himself and his progeny to Satan rather than to God.
God gave humans six days to labor and do their work. We know that with the Lord one day is as a thousand years and a thousand years is as a day.
Humans were given six millennial days to work and to be subject to Satan's influence. But the seventh millennial day is the Sabbath. Satan will not work during the millennial Sabbath, he will be dead.