After lurking about the forums for a while and seeing what people want from a future full-frame Pentax model, I have messed about on Photoshop and some K-1 promo images and made a concept for the "ideal" K-1 successor.
Visually, it's not much different to the K-1 (that camera is probably one of the most well thought out cameras I have used and am grateful to own) and most of the changes are based on the nitpicking I've seen while lurking and general improvements to the internals to kind of "catch-up" with the competing brands without being overly excessive.
It would be cool to hear what you guys think of this!