Absolutely nothing will happen.

People who believe in said rapture happen to have a low IQ level (thus thinks everything without simplified logic because their mental capacity is too low to do so) because the who believe Religion is the key to everything.

People who believe this will happen are risking their lives to the point they can get killed themselves without even considering the rapture.

The rapture is just a well-organized Business plan to make Family Radio more profit in their pockets. Even some of their own employees don't believe with with Camping's predictions and are already planning for future events (as in appointments and booking, nothing apocalyptic-related) for the next several months, years even; according to CNN Money.

Nothing will happen. At all. It will just be a regular Saturday. Well maybe SNL (Saturday Night Live) will make some kind of comedy skit about the rapture, and make fun of that 89-year-old scam-bag Harold Camping.

If the world is going to end, it will only end for him. Think about it. How many apocalyptic predictions have been made? Over a thousand. How many of them happened? Zero. Nothing will happen in 2011. Nothing will happen in 2012.

Nothing catastrophically-impacting to the entire globe will happen until 10 billion years from know when the sun is scientifically proven to swell up and explode. But by that point, the human race will diversify its existence to planets out of the solar system. Since creation, we have revolutionized our way of life, and we shall keep doing that forever. From generation to generation.

Sleep easy, my friends; nothing will happen.