American Airlines has just released an excellent fast track offer for Gold, Platinum or Executive Platinum status that is open for all non-status AAdvantage members. If you are not member yet, you can just sign up for AAdvantage and register for this offer.
Edit 6PM EST: AA already discontinued the first sign up page. I now have new link up that is still working. Edit: 10PM EST: Seems that AA has now discontinued all the offers listed below.
You need to register for this offer by August 27, 2013, and then fly between September 1 and December 31, 2013, on American Airlines or select partners (American Eagle, American Connection carrier, British Airways, Finnair, Iberia, Japan Airlines and Qantas). American Airline codeshare flights on other partners should qualify under this offer as well.