As we know the news on the prophecy states that Klaus's offspring will kill all witches and vampires now the vampire bit I understand since if the originals die all the vamps in their bloodline die. The witches going extinct I still don't understand but I find it strange that the werewolves are free of this prophecy.
So maybe this means that the werewolves are the true guardians of nature since they can become wolves they may have some connection to nature that witches don't. Qetsiyah said "Universe be damned." well maybe the universe is using Klaus's child to wipe out vampires and witches including ghost Bonnie(I imagine some how Klaus's child will end her two since she's techniquely alive) to wipe the slate clean.
Maybe nature has decided that witches are too problematic and must die look at what one has done for the sake of revenge *cough* Tessa the raging psycho bitch *cough* maybe Klaus's child is the key to destroying the other side some how and killing off all the witches and vampires some how does that.
My only question is given all these doomsday prophecies how is the Mystic Falls Gang not on this? I mean doesn't the new threat pose a danger to them? Especially Bonnie since she's a witch?
Maybe the child is nature's endgame?