Techradar
To be priced between the X1 and the M9
The camera will be revealed at Photokina 2012
...would use at least an APS-C sized sensor.
...still unclear as to whether the system will use interchangeable lenses...
Leica UK's Richard Swan: Any future interchangeable lens cameras from Leica would be compatible with M-mount lenses.
Perhaps we could see an X1 styled camera with removable lenses.