Not sure what all the negative pessimism is for...
Just thought it would extend the life of the existing and recent bodies. Plus it wouldn't be unheard of, as seen in Fuji's firm wares updates. Really, the hardware is there, the software is essentially there (as mentioned about the astro accessory control implemented), so why not?
Here is another link that explains it from a different perspective (see toward the end):
Olympus OM-D E-M5 II First Impressions Review: Digital Photography Review
For those who seem confused as to why you might want this, please consider that there might be areas of photography outside your experience. If a sub $1500 camera could do this easily over the $8500 645z, of course it would be difficult to justify. But for some types of shooting where colour accuracy and high resolution would be handy in a workflow, this would be amazing. I'm thinking studio/product/catalogue/interiors type of shooting.
Not all Pentax shooters are landscapers.