Interesting rumor. Cinema Eos on Photokina? If it's true and we see a development announcment, then it's clearly designed to push down the ridiculously high interest/pre-orders of the just-announced Sony FS7. That FS7 just disrupts the market, it's clearly the end of the current C300/1Dc/C100 sales, therefore they will HAVE to respond very soon.
If anyone is not following the FS7 it:
-S35 sensor inside the F5/FS700 (therefore absolutely lovely image and very sensitive)
-Records 4K 10bit 4:2:2 XAVC internal like the 30K $ F55
-Records 180fps at 1080p and 60p at 4K
-Outputs 4K raw at 60fps and 2K raw at 240fps to external recorder
-It comes with everything ready to shoot, a nice EVF, shoulder pad, articulating grip, internal ND filters,
-It's the most well designed camera I've seen in years
-It's 8000$. Half the C300 and just 1.5K over the C100!
Whilst the C300 is a lovely camera, my favourite actually, after this announcement its days are over considering it only records at 8 Bit, no 4K at all, limited to 60p at 720, this is just a different generation.
Canon must now offer a 4K option, and a 10bit option, and of course super slow motion. Perhaps in a new model, perhaps in paid firmware updates for the current line-up (that would be a major hit to Sony)