So this is happening...

http://www.carreviews2015.com/2015-ford-fiesta-rs-release-date/

Looks like with the 2015 model year, Ford may be bringing to market a new RS version of the ST with even more performance goodies. The price point seems significant though, hopefully when they come out that price will drop so that those of us who want to make the jump up to the RS do not need to use a spare kidney as a down payment.