The intellectual properties of that hereby question can differ the answer to it in many alternate ways, that there is no answer to be complete specific of, but what we know, is that the world can end anytime.
The world ends for somebody everyday. But the funny thing bout the 2012 thing is, is that is have been disproved repeatedly. Those calendars that everyone quoted? Yeah, they would have ended last year, in November, because they didn't have daylights savings. Then, and here is the kicker, they have found more calendars, that go way beyond 2012.