Originally posted by eddie1960 size and weight and ability to adapt . canon nikon sony all went there. fuji pretty much exploded once they went there. the k01 was interesting but not the market
monochrome tho is right a mirrorles w a kaf adaptor is a distinct possibility
I am quite sure that lack of EVF is what doomed the K-01.
We have been over this ground lots of times.
Canon {EOS-M} and Sony {NEX-5} had similar cameras {i.e., without EVF}, and those also lingered, but those companies hung in there and came out with winners when they put EVF on later models.
Considering problems Pentax has had coming out with DFA lenses, I don't see how they could possibly add yet another line of lenses.