A senior Panasonic engineer has hinted that they might be upsizing the sensor of the next round of compacts
Yoshiyuki Inoue, Panasonic's Senior Engineering Planner talked to TechRadar about the wildly popular LX line of high-end compacts, and teasted that we might soon be seeing a much larger sensor in the cameras. He talked to them about how the LX5 hasn't been as received as well as its predecessor, the LX3, and that rather than immediately release a new camera, they decided to tweak it with firmware before going for a hardware upgrade.
Where it gets really interesting is that they mentioned that a future version of the camera might get a major sensor bump:
One aspect that is being given serious consideration for the camera that replaces the LX5 is increasing the size of the sensor, Panasonic's Mr Uematsu even joked that it could have a 1in sensor like the new Nikon V1.