We've mentioned in teh past that the upcoming mirrorless camera from Canon would have the G1 X sensor. While an apparent prototype exists using the sensor, the coming camera is apparently an APS-C sized sensor based around the 18mp sensor in the Rebel T4i (Hopefully the rubber grip isnt the same).
The camera will also feature an articulating touchscreen, and maybe larger than some people are anticipating.
More to come I'm sure. An announcement is expected on July 23, 2012.
Seems [NL] is hearing similar things.