What might be expected.
I've been informed that Canon will be splitting the “G” series cameras into 2 models. However, there's a good chance they won't both be released for Photokina. Definitely expect the arrival of a G10. This will be a subtle upgrade to the G9.
There will be erogonomic upgrades as well as a newer type of lens on the G10. Megapixels to remain at 12? That's what I'm told.
I'll have more on this tomorrow.
What will be coming in the spring however, is the bigger CMOS sensored “G” camera. I will dub it the “G”MOS from here on out. I've had some information about it previously, I'm waiting for more.