The elimination of pride in the Kingdom. Satan will be bound for a thousand years. Isaiah 14 & Ezekiel 28 give us some information of the source of sin and its worst aspect pride.Man will be rightly related to God
Universal peace between men
Animals will return to their Edenic state
Renovation of the heavens and earth
Elimination of infant mortality
Minimum human longevity is one hundred years
Death in the Kingdom is limited to unbelievers
The incentive for sin will be greatly reduced
Many of the effects of the curse will be removed
Warfare and inter-human calamity will be removed
The Church Age saints as well as Tribulation and OT saints will have glorified bodies
God will control the entire government from Jerusalem
Most of the exact nature of the effects of the Fall will be removed from the earth at that time. When Satan lured Eve into disobeying God she let sin and decay into the arena of time and space. What exactly was this sin that Satan imparted to Eve and has become endemic to mankind; even celebrated. It is pride; the source of all sin and that which is an abomination to God. We may say it is not in us but God knows otherwise.
Lucifer was the most anointed cherub prior to his prideful ambition to assume God’s role.
Isaiah 14:12-15 How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations! For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north: I will ascend above the heights of the clouds; I will be like the most High. Yet thou shalt be brought down to hell, to the sides of the pit.