What's the name of the arms race for the next season?

It seems like blown diffusers were the focal point of F1 technological arms race since 2009. What's going to be the name of game for 2012? I suspect...

Source: http://www.motorsportforums.com/f1/148216-whats-name-arms-race-next-season.html

Yasumasa Hatakeyama Mike Hawthorne Nicky Hayden James Haydon