Heaven. That's what they call it now.
Well, since the fanfic deals with the concept of Gretchen retaining a certain personality and some of Madoka's memories, why not go further and suggest survival option for the others' souls? Which the author did. What made me roll my eyes is actually Kyuubey, not in regards to the plot but to Kyuubey himself. The white twerp(s) deserved some cataclism, really.