So...

Same time next week?

Only with jaguars...or cicadas...or the Large Hadron Collider...or Halley's comet...or, the classic, a Flood?

I cast my vote for all of these world ending sh*t disturbing events at once. The flood will put out the fires and drown the jaguars, and then the survivors can dismantle the LHC and use the parts to build an arc. The appearance of the cicada swarm will indicate that we have sailed to the shore.

There, we will find a rainbow.

So much more compelling than the reappearance of a short, bearded Jewish man.

The End-Times IV: Carnage of the Jaguar

According to the Aztec, there were four previous worlds or 'suns', each...identified with a particular deity and race of humans. The sun of earth, Nahui Ocelotl, is destroyed by jaguars, creatures closely identified with the earth and the underworld. pp. 34

-Aztec and Maya Myths, Karl Taube

Admit it, jaguar slaughter would make for an awesome apocalypse. And, is it not comforting to know that humanity has weathered this sky-rending storm before? Pre-Christianity?

Also, see this article about the Millerites and their collective wrongness, and this clip from The Simpsons.