https://www.impressjapan.jp/pr/monitor/1113_dcm/271301_free.pdf
Via Digicame Info (in Japanese) Via Pentax Fan Club Forum (Taiwan, in Chinese).
The Head of Product Development of Pentax Ricoh, who was first employed by the Asahi Optical Company back to 1978, is interviewed. It is told that a new set of 35mm full frame specifications is being formulated and that new moire removal algorithms are being developed as new in-camera function (which the K-5IIs doesn't have). Besides, a Ricoh brand new camera will come. As for the other PR unrelated stuff, I think the most interesting thing is that Foveon is making a new full frame sensor, as well as a monochrome one.
Good news after all! I am almost sure that I will buy one when it arrives! Keep it up, PR!
Related:-
What If When a Pentax FF Body Really Comes (My Own Case Study)
Ten Things that I Want Ricoh to Do for Pentax
Two Major Meanings of Full Frame - Choice of Shallower DoF and Most Optical Quality from (FF) Lenses
Compatibility of DA Lenses on Full Frame
Old Question: Will there be a Pentax Full Frame DSLR?