Δαφνη Ευτυχια Αρθουρος

Some of it would depend on whether they still have access to matter.

An anthropologist would indeed be in heaven if they were in heaven, at least until it occurred to them that there were a lot of people in hell, so you can't get the whole picture of the human race from heaven. You could visit hell (and it would make one hell of a decent short story, but I don't think you could trust the people in hell to tell you the truth.

One of my favorite Kipling poems:

When Earth's Last Picture Is Painted

When Earth's last picture is painted and the tubes are twisted and dried,
When the oldest colours have faded, and the youngest critic has died,
We shall rest, and, faith, we shall need it -- lie down for an aeon or two,
Till the Master of All Good Workmen shall put us to work anew.
And those that were good shall be happy; they shall sit in a golden chair;
They shall splash at a ten-league canvas with brushes of comets' hair.
They shall find real saints to draw from -- Magdalene, Peter, and Paul;
They shall work for an age at a sitting and never be tired at all!

And only The Master shall praise us, and only The Master shall blame;
And no one shall work for money, and no one shall work for fame,
But each for the joy of the working, and each, in his separate star,
Shall draw the Thing as he sees It for the God of Things as They are!