Join Date: Oct 2009
Location: Just south of sanity
Once the ultimate day of judgment comes, everyone will be judged according to God's standards. What exactly those standards are has been hotly debated by better minds than mine.
There is no mention of free will after final judgment, but I would assume it goes on. Being in a glorified state, those who have been chosen to be with God will be unable to sin. It just won't be in them to do so. Not that God will forbid it, just that they will have no desire to sin.
However, the final judgment doesn't come at the time Christ comes back a second time. Many people think that's the case, but it's not.
There will be 1,000 years of peace, during which time Christ will rule the Earth and its inhabitants. Anyone who survived the Apocalypse can make their choice to either follow God or Satan. They will still have that choice.
Once the 1,000 years of peace are up, the Earth and possibly the whole universe will be destroyed. That's when the final judgment will happen, and all who have died before will either go to Heaven with God or to Hell with Satan.
Both places will have their final number of inhabitants, and neither will be able to go from one place to the other. So if you wind up in Hell after the final judgment, you're stuck there forever.