Here's some news on the 2012/2013 Mustang Boss.
http://www.mustangheaven.com/2010/2012-mustang-boss-302-production-numbers-leaked-via-borders-online-bookstore/#more-2892
In the description it says the Mustang Boss 302 model will be built for two years (2012 & 2013) with 4,000 models produced each year. Of the 4,000 Mustang Boss 302 models 3,500 will be street cars and 500 will be ”R” race cars ( Laguna Seca edition). If this is true Ford is limiting production to just 8,000 Boss Mustang 302 models for 2012 and 2013.