I think the whole mirrorless camera thing caught Canon sleeping,
I don't think making a whole new line of lenses would stop canon,
Not making a return on investment would.
Canon is already 2 generations behind, waiting till 2012 will put them at least 1 more behind. I sure hope they release one next year.
May be Canon is smart to stay away from mirrorless for a while for the following reason.
1. There are 6 or 7 APS-C mirrorless camera out there that generates a lot of attention. But are they really selling well? Are they making money, after the the R & D cost???
2. None of them is really coat pocketable with the lens.
3. Focusing speed is terrible, even compare to the entry DSLR.
4. Weight saving is also minimal, compared to entry level DSLR.
5. Cost is comparable to entry level DSLR.
6. You will need a camera bag for either Mirrorless or DSLR.
7. May be Canon is waiting for a technology breakthrough or trying to improve the existing technology.
I actually will like to have a mirrorless camera with the following:
1. APS-C sensor with even explosure all the way to the corner. Canon should get the offset micro mirror technology from Leica plus the software adjustment.
2. Focusing time equals to the existing DSLR. If it cannot be done, then Canon should have lenses that have fine manual focusing with depth of field scale like the lenses in the old film days. With these, we can use the zone focusing technique and have NO focusing delay.
3. Some prime pancake lens to make the camera really coat pocketable.
4. The camera body design should be taken a page from the Fuji mirrorless (start from ground up, make it small and still comfortable in the hand, and use classic range finder camera as a model. Also canon should also get the hybrid view finder from Fuji).
If such a camera exist, I will pay $2000 for it. It sure beats the $7000 price tag of the Leica M9.