Originally posted by MJSfoto1956 ...will the new battery grip sport the new "wheel" too?
I think that would make sense in order to still support direct dial access to three shooting parameters even in portrait orientation.
However, I don't think it is necessary to go as far as replicating the four-way controller. That would make the grip rather bulky and the four-way controller on the camera works rather well when using the grip in portrait orientation. It requires a small adjustment of where the thumb needs to go, but I find it acceptable.
In contrast, changing the ordering / placement of the AF button, green button and AE-L button on the grip compared to the camera (as, oh horror, implemented by the D-BG5) is an absolute no-go, AFAIC. Muscle memory should be applicable independently of orientation. Yes, the four-way controller would be a small exception, but I never had a problem with it, whereas I absolutely know I'd go mental with a different button layout.
Here's to hoping that the K-1 will come with a grip that mirrors the camera buttons as closely as possible.