HAHAHAHA

Provoke the United States and the West into invading a Muslim country by staging a massive attack or string of attacks on US soil that results in massive civilian casualties.
Incite local resistance to occupying forces.
Expand the conflict to neighboring countries, and engage the US and its allies in a long war of attrition.
Convert al-Qaeda into an ideology and set of operating principles that can be loosely franchised in other countries without requiring direct command and control, and via these franchises incite attacks against the US and countries allied with the US until they withdraw from the conflict, as happened with the 2004 Madrid train bombings, but which did not have the same effect with the July 7, 2005 London bombings.
The US economy will finally collapse by the year 2020, under the strain of multiple engagements in numerous places, making the worldwide economic system, which is dependent on the U.S., also collapse, leading to global political instability, which in turn leads to a global jihad led by al-Qaeda, and a Wahhabi Caliphate will then be installed across the world, following the collapse of the U.S. and the rest of the Western world countries.