A while back we had quite a go at the likelihood of an S3 at Photokina. Those favoring a new S3 cited the possible change from CCD to CMOS and a change in suppliers . Against pointed out the complexity of a new factory ,the M10 and that the S volume is small volume . Leica Rumors has been excellent over the past few years ....had the 50 sum micron asph and the mono months before anyone would consider it . Today they reported a new S3 at Photokina with the same size 37.5 sensor but improved performance over the S2.
The obvious CMOS supports live view,video and can be tuned to perform at high ISO s . Maybe more sophisticated AF/AE capabilities similar to a DSLR.
You can also see the benefits of a 37.5 sensor on manufacturing .
However the S user is never satisfied ..really you have no requests for new capabilities? :face smack:
Remember this is speculation but based on a decent source and no details are available or can be confirmed .