I’m excited as well (not only by this feature). If the claim of much improved DR/reduced read noise holds, it would make a perfect Christmas present for me. Unfortunately I will have to give this present myself, I am too old to rely on relatives wrt to Christmas presents ;-). The good thing is, that the new model arrives that late that there was a lot of time to save money for it :-).
I checked the information available on that feature. In https://www.youtube.com/watch?v=HcQ9MSRRvn4, around 0:44, you can see what controls are given by the original software. But I guess there’s more what could be done with the data, as you are writing. Another example, the plane of sharpness could not only be shifted along one axis but tilted slightly, which would e.g. be useful for portraits with both eyes in different distance to the camera.
As soon as the camera shows up in the local store, I’ll try to gather some raw samples.