Maybe I’ve been reading too much Barth/Moltmann lately, but let me try to flesh out a few ideas here. Both MacDonald and Talbott argue for the possibility (and eventual certainty) of postmortem repentance by all of humanity, possibly taking thousands of “years” (not that we’re going to track those in the hereafter) for this to be accomplished. But assuming that this will indeed be accomplished, the point at which it will be accomplished will vary greatly depending on the individual. What’s troublesome to me is that this still accentuates the human’s free will to decide his/her fate, effectively making salvation an act of man, and not a gift of God. As Moltmann would say, we’ve reduced God to merely an accomplice to human free will.
On the other hand, it’s highly implausible that a person who lives a life of rebellion from God would feel “at home” in heaven without some form of purgatorial cleansing.
Help me out here. I’m having difficulty reconciling how to avoid viewing salvation as an act of man when entrance to heaven hinges on the repentance of man and not solely the finished work on the cross.