Those that are sent before the Great White Throne will be sentenced to the Lake of Fire forever.
The purpose of Satan being released is to prove man is a failure in every environment you set him in.
There are two positions available for those who showed themselves faithful while they were in their natural bodies.
There are several groups of people within the Millennium: those with redeemed bodies, those that survived the Tribulation, and those born in the Millennium.
After the Rapture will be the Judgement Seat of Christ, Worship of Jesus and witness of the tribulation.