Yep the 1-Series ergonomics must be used to be fully appreciated. While I like most aspects of my 5D3, the 1D4 is streets ahead in the ergonomics department. If the 7DII can close the gap somewhat, then that can only be a good thing. Sports/action/BIF shooters who are lamenting the demise of APS-H will no doubt be looking keenly at this announcement. The new battery? I can only assume it's a higher horsepower item than the LP-E6 to drive the relevant performance benchmarks along. If Canon gets it right, the 7DII will be an absolute killer.
New Ergonomic DesignWhy is everyone assuming this means smaller? I find the design of a 1-series body to be much more ergonomic.
I think the ergonomics of the 1D series are horrible. I have small hands and the bodies are just too thick for me (literally, with my hand on the grip in the proper place, my index finger doesn't reach the shutter release). Plus, you can't remove the grip meaning you have to tote around all that extra weight and size even if you don't need it for what you are doing that day.
I can certainly understand your dilema. I have pretty good sized hands. When I first bought the 60D, the small size was one of the first things that turned me off and I found very uncomfortable. When I bought my 7D, I was relieved and pretty happy about the good overall feeling of soliditity and balance I had with the camera.
After shooting a 1d series, I purchased the grip for my 7D. I was originally hesitant, due to what I thought was a high cost for the OEM, but purchased it anyway after holding and shooting a 1 series. In the last 3 years since I've had the grip, I've only ever removed it three times. Twice for maintenance cleaning and once to let my daughter try shooting with it, it was to large for her with the grip and her small hands...
I wish they would build it with the battery grip, however I know that would be very inconvenient for many folks that don't like it or it's too large for. I have no problem purchasing a new one for the MK II if it needs a different one. Seems likely if they are changing the batteries...