I say they will try to do it before 2012. So there will be a big crisis (event) in the next 2 years.

I think most likely it will be a pandemic or economic crisis or both.

One possible scenario would be the outbreak of a pandemic with economic collapse following. Then they will establish an interim global government to "deal" with the crisis. They will then tell people they need follow the orders for their own safety.

Our global financial system almost collapsed recently, i think they may try it again. If they succeed a massive economic crisis could follow and the illuminati controlled leaders will agree to establish the NWO to stabilise the situation.