In other lens news..........
The new $2800 Nikkor 70-200/2.8E is stellar. It's even better than the legendary Canon 70-200/2.8.
There is rumored to be another (4th gen.) Canon 70-200/2.8 coming as well. I just find the weight of an f/2.8 to be excessive along with other gear such as a 100-400 or similar, but I'm not much of a wide aperture user. They should update the 70-200/4 IS. Although it is a fine lens, improvements in AF, IS, and IQ are possible after a decade.