so developing such a thing is not what you'd call good business sense.
I'm always an optimist, so I hope that Canon does not completely abandon the commercial pros.
I still think Canon may be trying to gauge the market and determine if they can meet the demand with one body, or whether they need to split into two niche bodies. I'm repeating myself from other posts, but I think the needs of studio pros and news/sports pros are fairly distinct.
You need high resolution and excellent dynamic range. The news/sports market needs manageable file sizes, fast frame rates and reach. Those specs are not completely exclusive of one another, just a case of where the emphasis is. Seems like a question Canon may be wrestling with is whether or not they can design a single body that meets the needs of everyone or whether they are better off with two different bodies, each targeted to their individual markets.
I could see a single 1Ds-type body that offers different choices in file size for different shooters. Smaller files for news and sports and larger files for studio work. Virtual zoom that crops the image size to 1.6 or smaller when extra reach is needed and allows full frame when maximum resolution is needed. Some things that only Canon knows: what's the total size of the market, how price-sensitive is the market, is it more costly to build a single body that does it all, or to produce a couple different models each targeted to specific segments.
From what you've said before, I'm guessing that a 5D with slightly better build, improved autofocus, improved dynamic range and a pixel-density in the same range as the 7D (If I recall from previous threads, the 7D sensor works out to somewhere in the 40-50 mp range on a full frame) would not be all that far off from what you need. (At least until the 120 mp sensor comes out). Canon may be spec-ing out their options to determine if a "5D on Steroids" would be a better market decision than a new 1Ds.