Thanks BC, you're absolutely right, there's always something new just around the corner. As a matter of fact, the announcement of the S3 is the reason I started looking for an S007. I figured the S007 price would be coming down this spring and I have been using an S2-P now for six years and I think I'm ready for a new S system camera.
I have just finished testing the S007 for one week and I was quite pleased with the results I got and it really is a completely different camera. Not in the way it handles ergonomically, that is all very familiar, but once the S007 is in your hands you feel that this is the second, much more sophisticated iteration. The mirror and the shutter are a lot quieter than the S2 and they sound like they were made for hundreds of thousands of effortless exposures. I love my S2-P but the mechanics of this newer S007 feel and sound much more reassuring and the same goes for the autofocus which is noticeably faster.
When it comes to colours, I too have a feeling that the out of the box colours from the CCD sensor are more friendly to my eyes than the newer CMOS 007. For instance in my test shots blue skies have a tendency to be some more cyan-ish on the S007 than the S2-CCD. Maybe that's just my eyes, I don't know, but there was nothing going on color-wise, that could not be easily corrected or altered to taste in Lightroom, the files are extremely malleable.
You mentioned your wish for a little higher ISO, and I must say I was very pleasantly surprised by how good 3200 ISO is. I am used to the look of the high ISO shots I make with the Sony RX1M2 which I use for reportage work and that camera has the same 42-Mpix full-frame CMOS sensor as the Sony A7R II, but the noise on the Leica S007 looks a whole lot more friendly and grain-like.
As for for the choice between an S3 and an S007, I (try to) sell fine art prints of my work and I'd really like to be able to make larger prints and that's where the 64MP from the S3 will come in very handy, the reason why I am a little bit on the fence right now about which camera to choose. And although I must say that I think I could be very happy with the S007 because it is really a big step up from my S2-P, the extra 26,5 megapixels would be nice to play with. And at the moment there are rumors (just rumors I need to emphasize) that the all new S3 will not be as expensive as the first S system cameras when they came to market because of the strong competition from Hasselblad and Fuji, around 10 to 15 thousand. So right now I'm leaning towards waiting for just a little bit longer to find out what the price difference will be.