I like everything in the spec except 24MP sensor. I like a clean sensor rather than a high MP one. I don't like the big file size it generated. And it may be too critical for my lenses and I have to put more money on better lenses again. for me, 18MP is already too much. I don't know the resolution limit of 400mm 2.8 and 500mm f4. I definitively don't want to buy them in the near future. But maybe canon can add some algorithm to generate better s/mRAW files
If the sensor is fabricated on a 180nm design with higher Q.E., those 24mp could look FAR better than the 18mp the original 7D has now. It all depends on whether Canon ups the ante on sensor tech, or just moves to a higher pixel count. If the former, technically speaking, there is never anything "bad" about more resolution. Even if the sensor outresolves your lens, if you scale down to 18mp, 16mp, or anything "web sized", it will still look better than the 7D...you won't see any softness when scaled down, even with lenses that might not quite be good enough.
For all the rest of us who have or are willing to buy better glass, the higher resolution means more reach, so our expensive glass goes that much farther. I'm all for 24.1mp....assuming Canon actually moves to a new process and makes those 24 million pixels BETTER.