A new sensor line will appear in 2013 that will be seen across the entire APS-C lineup. Expect to see the first announcements in the first half of 2013.
The delays in developing the sensor was apparently a big reason for the big firmware update for the 7D. It’s also suggested that there may not be a 7D/60D amalgamation in the future. The 7D Mark II will not be an APS-H camera as some have wished/rumored.