Continuing with this discussion, I found the following that Gary has listed in the TM articles;
Professor A.T. Robertson and A.B. Bruce agree that 'kolasis aionion' of the KJV has a literal meaning of 'age-lasting correction.'"
"Let me say to Bible students that we must be very careful how we use the word 'eternity.' We have fallen into great error in our constant usage of that word. There is no word in the whole Book of God corresponding with our eternal..."
-G. Campbell Morgan
An argument was introduced by Augustine, and since his day incessantly repeated, that if aionios kolasis does not mean "endless punishment," then there is no security for the believer that aionios zoe means "endless life," and that he will enjoy the promise of endless happiness. But Matt. 25:46 shows the "eonian chastisement" and "eonian life" are of the same duration-lasting during the eons, and when the eons end, as Scripture states they will (1 Cor. 10:11; Heb. 9:26), the time called "eonian" is past and the life called "eonian" is finished, but life continues beyond the eons, as Paul teaches at 1 Cor. 15:26: "The last enemy that shall be destroyed is death." That is, the last, the final one in order. How will it be destroyed? First Corinthians 15:22 gives the answer: "For as IN ADAM ALL are dying, even so IN CHRIST ALL shall be made alive." Death is destroyed when ALL have been vivified, or made alive, IN CHRIST. There will then be no more death. Just as life is destroyed by death, so death is destroyed by life. Our present bodies are mortal and corruptible (1 Cor. 15:44-55), but when mankind is made alive IN CHRIST they will be raised immortal and incorruptible.
Those who believe in a universal salvation as is spoken of at Col. 1:15-20, and see the purpose of God's love and His plan for the eons, are secure in their belief that the same number of those who are now dying as a result of Adam's disobedience will be made alive in Christ. The ALL of these verses represent exactly the same number of mankind. Romans 5:18-19 says, "by the offense of one, judgment came upon all men-by the righteousness of One the free gift came upon all men-by one man's disobedience the many were made sinners, so by the obedience of One shall the many be made righteous." The "all men" and the "many" in these verses include the same number of humans in both cases [the same "the many" that died are the same "the many" that will live].
The "all" in 1 Cor. 15:22; Col. 1:15-22; and Rom. 5:18-19 mean the same in every case. God's eonian purpose is to head up ALL in the Christ, as is stated in Eph. 1:9-10 and 3:11.