Alas we can only dream and speculate.
I don't really get Canon though, I simply don't understand why the AF off the 7D on even what the 5D2 is now would be a problem to do. It would surely make commercial sense, as it would make a mind blowing body I would be rushing out of the factory, even as what Nikon do, as something like the 5D2s or whatnot. I wouldn't grumble getting one, despite having bought two 5D2's. 21million pixels is more than enough for my needs for the time being, it just makes me glum the AF lets all the loveliness down in low light or in unexpected moments when using outer focusing points reliably would be cool
I don't really see how it would effect sales of the 1Ds series either; togs who use them do so for the obvious benefits they afford, and as I said the 1Ds4 should be on another level completely, which is why i'm rapping my fingers waiting for it