The 26th seems like a reasonable day for announcements, they usually fall on wed or thursday, and sometimes tuesdays as well.
I'm kinda wondering if they will announce anything I want though. I have too much hardware as it is. In spite of rumors and wishes, we will likely see incremental improvements in the sensor end, and better video along with other gadgetry.
A really fast contrast detect autofocus that was good for all but the fastest action shots would perhapse entice me, I'm sure that many of my images are not optimally in focus. When I am able to take the time to use a tripod, and use live view / contrast detect focus for still subjects, the small improvement in autofocus can really help improve sharpness.