I found this interpretation (quoted below) interesting: https://www.christianforums.com/threads/why-are-so-many-christians-against-annihilation-in-hell-when-scripture-supports-it.8072784/page-11#post-72942522
"Again, look at its immediate context which is not hard to do. The passage does not contain chilioi so the germane question is, does it refer to eternity or to an age of time? The context better fits with my claim that it refers to age instead of eternity which you have presumed upon.
- The judgment takes place on earth upon Christ’s return. Those who are judged are those persons who are still alive. Thus it cannot be the great white throne judgment which takes place after the millennial reign upon Christ’s return and when the rest of the dead (not those alive) are resurrected.
- Verse 34 states that Jesus tells his sheep on the right to “inherit the kingdom.” What do you suppose this means? What kingdom? How long? I assume you know or agree that what happens after this statement is that Jesus’ return ushers in his 1,000 year reign on earth. If this is the case then the sheep - those people alive at his return - enter into the millennial age.
- This cannot be the bema seat judgment either as the sheep are unredeemed. They are not the “raptured” saints who return with Christ.
- For reasons already mentioned, this cannot be the GWT judgment. Also, there is no reference to any kingdom associated with the GWT judgment while the sheep/goat does indeed reference a kingdom.
Therefore, the purpose of the Sheep/Goat judgment is to see who will inherit the kingdom (Matt 25:34) and who will not (Matt 25:41). The purpose of the Great White Throne judgment is to see who will be sent to the lake of fire (Rev 20:15).
Given the above context, I submit that Matt 25:46 references a limited age of time, specifically the 1,000 year reign of Christ on earth whereby the Son establishes his kingdom rule. Those sheep thus have age-long life during this millennial age. I see no where in this passage any support for interpreting this passage as referencing “eternal” - or even alluding to it."