This is in reply to your 3/02 post in regard to your questions below:
"So what about for the lost, isn't there also degrees of damnation, or a more tolerable judgment?"
"Matthew 23:14 Woe unto you, scribes and Pharisees, hypocrites! for ye devour widows’ houses, and for a pretence make long prayer: therefore ye shall receive the greater damnation."
"Mark 12:40 Which devour widows’ houses, and for a pretence make long prayers: these shall receive greater damnation."
"Luke 20:47 Which devour widows’ houses, and for a shew make long prayers: the same shall receive greater damnation."
The above verses all refer to "greater damnation," but I think it is referring to the greater damnation in hell or greater degrees of punishment in hell because according to Matthew 23:33, Jesus says, "Ye serpents, ye generation of vipers, how can ye escape the damnation of hell? " So it isn't referring to the lake of fire as far as I can see.
As for the unprofitable servant in your question and verses below, my opinion is that the unprofitable servants are those Christians left behind at the Rapture to go through the great tribulation period which is a time of great evil and darkness in the world. Inner darkness would be a person's unforgiven sins while outer darkness would be all the sin in the world. I don't know if there is anyone else who shares the same opinion as I do.
"So, what about the mist of darkness and the outer darkness, what are they, or where are they, or who are they for?"
"Matthew 25:30 And cast ye the unprofitable servant into outer darkness: there shall be weeping and gnashing of teeth."
As for the mist of darkness in II Peter 2:17 "These are wells without water, clouds that are carried with a tempest; to whom the mist of darkness is reserved for ever," it is referring to the fallen angels in II Peter 2:11. As for "the blackness of darkness" forever in Jude 1:13" Raging waves of the sea, foaming out their own shame; wandering stars, to whom is reserved the blackness of darkness for ever," the wandering stars would also be the fallen angels. Since they are going to end up in the lake of fire, it could be referring to the darkness part of the lake of fire that you referred to.
As for your questions below:
"Additionally, and even more odd of a question, is there any possibility that some at the great white throne judgment will actually have their names in the Lamb's book of life? Or, is it clear cut, that no one at the great white throne judgment has their name in the Lamb's book of life?"
Rev. 20:15 says, "And whosoever was not found written in the book of life was cast into the lake of fire." Since they are judged according to their works, only the Lord knows the answer as to whether anyone's name is found written in the book of life or not. I have always wondered about that myself.
As for your question below:
"Since, line 12 says, "the dead", does that mean only the spiritually dead?Or can there possibly be some that are simply physically dead, e.g. some may be killed when the great multitude moves against the camp of the saints right at the very end of the kingdom?"
Rev. 20:9 says, "And they went up on the breadth of the earth, and compassed the camp of the saints about, and the beloved city: and fire came down from God out of heaven, and devoured them" so they are all killed.