A quick backpedal to the vertical grip thing...this is an excerpt from a post I made on another thread regarding that...
I have the 7D battery grip. It is essentially useless to me when shooting wildlife, because I need to select different focus points with the thumb joystick on-the-fly as I am shooting moving subjects. The 7D battery grip obviously does not have the thumb joystick, nor can you reach the built-in body joystick when gripping the battery grip vertically. I rarely shoot vertical wildlife shots simply because I cannot select focus points and control everything easily in vertical format with the subject is moving. If the 7Dmk2 has the pro body with integrated grip similar to the 1D-x with the thumb joystick and everything, I would be thrilled.
If the 7D2 does not have a vertical grip built in, it is highly unlikely that I will purchase an add-on grip, considering it would be the same story as my 7D grip described above. This would be a major disappointment for me.
Why don't you just turn the 7D vertically so the back of your hand is facing up?
Maybe Canon will add a joystick to the grip for the 7DII. I would be surprised to see that though.
I think there is about a zero percent chance the 7D's successor will come griped like a 1D. It would be too bulky for many a potential buyer. Canon's not going to want to put off potential customers who value the compactness of a 7D type body, just to satisfy people in the minority like yourself who would enjoy carrying the bulk of a 1D just so it has a vertical joystick.
AND anyone that does want a grip can just buy it separately - more money for canon. You do know that they like when you buy extra things for your camera, right. And for anyone STILL not satisfied having a grip without a joystick can go with a 1Dsomething.
I really think you'll have two options when the 7DII comes out. Hold your camera vertically, or buy a 1D.