An insight just occurred to me: one of the primary reasons for the Cylon attack on the Twelve Colonies was their belief that Cylons were a superior form of life. Somewhere back at the beginning Six or Boomer said something to the effect that the proof of the flaw in humanity was that humans were the only form of life that killed their own kind. Now, however, civil war has broken out among the Cylons; Natalie shot Six in the head; centurions are shooting skinjobs; and the Eights tried to entice Athena into leading a mutiny.

Sooner or later it's going to occur to the Cylons (probably Cavil, as he is the more spiritual of the lot) that Homo-Cylonus is no better than Homo-Sapiens. Cylons make mistakes, too, and probably even bigger ones. And if that is true, then how can they justify either their pursuit of the Colonials, or even the separation of the two races. Perfection or evolution is a mutual goal, so why not do it together?

Perhaps "humanity's end" which the hybrids spoke is the end of humanity as a solo species, and the beginning of a new one! The apocalypse which Kara is the herald of is the death of the doom which has hung over the fleet since the beginning of the series. A Laura Roslin saw on the ferry, death itself is only the beginning....!