Like many here, I'll probably wait if I have a sense that it'll have a physical keyboard. That's my biggest thing as I'm a BB user now (and former Storm owner). And I'm not in a great hurry to upgrade, so I can't wait until November. My BB will do fine until then.
Also, I was hoping for a better camera/video camera from the D2. Hopefully, the Droid Pro will be more along the lines of the DX as far as that's concerned. If so, it'll be hard to pass it up as I think it'll be more of what I had hoped the D2 to be, and more considering the other hardware upgrades as well.