The world will end with Ned Kelly being sworn in as an American citizen. :P
The world will either get slapped by something from space or the sun will run its course and burn it up.
Our world will end within the next twenty years, but that is just an adjustment. Humans will be around, but our habits will change.
The world will simply wink out of existence once you swallow the red pill.
With a slurry
another big bang