Is Canon Set To Release A New 4/3 Sensor Body? (Update)

Update: A friendly reader (thanks!) told me that the patent doesn’t refer to a 4/3 ratio but to a sensor with a 4/3 inch diagonal.

I am still puzzled by the Canon patent I wrote about yesterday, a patent referring to two lenses for a 4/3 format sensor: a 14-28mm f/1.4-2.4 and a 12-28mm f/2-3.2 lens. Since the only Canon camera sporting a 4/3 ratio sensor is the Powershot G1X I am wondering what is going on. Is Canon planning to release an interchangeable lens camera with 4/3 ratio sensor? Anyone?