Well, as a Christian, I do not think that there will be much ambiguity after death. According to the Bible, the only book that matters to me, then I can see a good "expectation" plan laid out before us. So, I'll maintain that the incomprehendability is only disguised as the surprise of JOY I recieve not being able to comprehend perfection, as Heaven will be. No death, pain, tears...that is no fathomable to me, as I could imagine it is not for anyone who is true to themselvse.
But, more or less, you're arguement is begging the question if one is wrong about their suppositions of the afterlife, and what they would do. This is no more fathomable than the incomprehensability of not understanding the perfection of God. Ignorance, in this case, is absolute. Since there can not be degrees to ignorance in this example, then no answer is suffice any better than another. The same incomprehensibility is the same for both my beliefs I maintain now, and the only answer that I could give if I were wrong---they're both completely unknown.