I don't know what will happen in medium format land at photokina but I would suggest whatever is announced to have it ready to buy the day the pdf hits the airwaves.
I know in the world of marketing it's tempting to say something is coming to hold buyers attention or to keep them from moving to another brand, but from a professional standpoint, unless you can buy it, rent it, use it that day, it really doesn't exist.
As far as MY wish list, well top of the list would be a good Nikon style LCD, but I don't hold much hope for that, though I'd forego the lcd wish if the makers would just make all of their backs easily interchangeable with all medium format cameras.
I really believe the limiting of the medium format market happened the day that each maker decided to make specific mounts for specific cameras. (I know hasselblad and Sinar offered something interchangeable, but they both required screwing and unscrewing stuff, and the backs seemed to come at a premium).
I'm talking about just click it on and shoot. I know if my two back would fit on any body I'd have an H-1/2 sitting in our studios to compliment the Contax's I use.
I'm really not a fan of proprietary film digital or analog and I believe one of the limiting factors of medium format (beyond price) is the fact your stuck into one system at the time of purchase, (without buying the value added, floor mats not included warranty) and even with the switch em for free warranty your still not going to be able to snap that blad back on a contax, or the phase/Mamiya./Leaf back onto a Rollei.
I also suggest a 3 year bumper to bumper warranty and ending the $2,500 watch battery repair thing.