There are a few photos of 2015 Roush Mustang renders and clay models on the web. According to Mustang Fan Club, the rendering was captured during a ROUSH open house event. One of the photos shows the probable unvel date – “2015 ROUSH Mustang Launch – Date: Jul 1st 2014 — Nov 1st 2014”

Images: Twin Turbo via mustang6g.com forums