Canon needs to announce fairly soon if for no other reason they've cleared the market of 5Dn buyers with the lower pricing on 5D2. At this point you have folks like me that bought for $2K because I'd likely not buy a 5D3 for 50% more. Then you still have the waiting people who will pay $3K and are going to keep waiting. That leaves Canon with no buyers in this niche until they produce a product.
I agree, and also think that the Concept Cinema DSLR will stop video people from buying the 5D3. It makes more sense for Canon to make the 5D3 a more stills oriented camera (I know how much you photogs hate paying for features you're not going to use). I think both the concept DSLR and 5D3 will be great cameras and plenty of issues will be addressed.
*5D3/Photographers - Better AF, Better LCD, Digic V (multiple most likely), better ISO performance, faster fps
*Cinema DSLR/Videographers - Get moire, rolling shutter and aliasing under control, better high ISO performance. Uncompressed codec, thunderbolt port, some type of servo focus maybe (although it seems like there isn't a great way to do this). Who knows, it seems like not having to worry about AF and fast shutter could bring down the cost substantially, after all this is supposed to be a video camera.
Hopefully everyone will be happy/satisfied