It might be the 1DV - the first full-frame sports camera from Canon.
Some might say it's too early for the 1DIV to be replaced but, IMO, it will be replaced next year.
It's about time the 1.3x crop factor gets retired.
I doubt all of this.
First off, the 1DIV has its own particular niche. The 1.3x crop means you get better ISO performance than with a 1.6x crop, and should be less demanding on lenses, but you still get the benefit of extra "reach." The specifications otherwise are up-to-date. I'm sure that some folks would like a fancy 60D style swivel screen but that's about it. And in any case I don't think the swivel screen would be a benefit to all shooting styles - some cameras need to take a beating and a moving screen is the weak point in any system's build, from laptops to cameras.
About the 1DV idea - I suppose it's possible you could make a bells-and-whistles version of the 5D line, a full-frame sports camera with a swivel screen (maybe, I'm skeptical again for the durability reason), and I'm sure it would be popular with people who do close-in sports. But I don't know if the market is really all that big.
IMHO, Canon's release of the EF 8-15mm is an indication Canon is not planning to retire the APS-H sensor based cameras.
It's not an EF-S lens, but a fisheye that distorts the image. It has nothing to do with APS-H in particular; images from this lens will be at their widest and probably their most striking when used on a full-frame. But I would agree that APS-H isn't going anywhere soon, mainly because you can make more sensors more cheaply with the smaller format.
Finally, let us hope that we get a killer 5d MarkIII, with great DR, high clean ISO, 7D AF, 5-6 fps shooting capability with some improvements and a 2500$ price tag
This is what I'm hoping for as well, though the rumor image seems to indicate a 1D series style body, I thought. Could be wrong.
There's something about a 5D MkIII before the 1Ds that just doesn't sit right.
What doesn't sit right? The 1Ds may be a "studio camera" but the autofocus system is better by far. Actually, you have to ask - what sort of burning need does the 1Ds Mark III fill right now? There's a good sports camera in the 1D Mark IV, and a faster, more accurate 5D would fill a full-frame shooter segment at a good price point.
I just bought a 5Dii a week ago.
The same thing happened with the 550D when I bought a 500D last winter.
I wouldn't worry about it. Just congratulate yourself over all the pictures you'll be taking with a wider field of view, more detail, better ISO, and better dynamic range over the 500D or even the 550D.
Sounds like you are waiting for a D800! Canon will never make a camera like you want.
Please think twice before making posts like these. They don't add anything to the conversation.