Questions about 2012, Planet X, Nibiru, etc, will end in 2013?

I can not wait – but I know it is another day Doomsday news. Does anyone know what's next?

The Nibiru / Planet X things first appearance in the Earth Chronicles Sitchin, and had absolutely nothing to do with 2012. So I have serious doubts that the passage of 2012 affect the theory of the former astronaut.