Of course, there was that prophecy that the restoration of the Church would begin with the "Black Pope" and "White Pope" die on the same night. Black Pope has generally been thought a reference to a Jesuit (who's often called the Black Pope), but what if it's a literal Black Pope?
If this is to come true in our generation, the most likely scenario would be the "Black Pope" (the Jesuit Francis) and the "White Pope" (Benedict) dying simultaneously, though most likely for different reasons. I'm reminded here of the phenomenon we see quite often, that celebrities, entertainers, and the like, seem to die in twos or threes within a day or so of each other.
(And as a kind of side note, don't forget the "27 Club", Jim Morrison, Janis Joplin, Jimi Hendrix, Amy Winehouse, Kurt Cobain, Pete Ham,
et alii.)