I'll add my opinion to the mix.
Originally posted by MarkJerling This is no "one off body shell". It's very clearly very nearly production ready. Mock-up shells don't show that level of detail.
I'm inclined to agree, though with the considerable advances in 3D printing an alternative explanation could be this is still a mock-up.. albeit a very
detailed one.
The lack of a built-in flash is rather illuminating... at least to me, it indicates a possibility that Pentax/Ricoh could be working on a wireless flash solution to make up for the lack of an in-built flash on this model, and on the K-1 MKII.
Such a development would be a welcome one,
especially if Pentax developed a partnership with a flash manufacturer (e.g Profoto,Elinca) that could alleviate the strain on Ricohs budget and R&D faculties, and develop novel and powerful flash tools.