See my Pentax K1 wish list at B&H Photo.
According to Pentax, the K1 is now shipping. I expect one soon from B&H Photo for testing. See update at bottom of this post.
See my earlier discussion and coverage of the discussion and coverage of the Pentax K1.
Where is pixel shift mode for Sony anyway?
Shown below is a crop from the pixel shift mode of the Pentax K3 II.
UPDATE 4 May
The Pentax K1 is on the way from B&H Photo as follows. My primary focus will be on the pixel shift mode, because the K1 holds the potential to beat the pants off the Nikon D810 and Canon 5DS R if everything is done just right.