I have also been following the development of the K3-III with interest.
Since I mostly do wildlife photography, I was getting desperate with the slow focus of my Pentax K5-II and Pentax K-1 and I was seriously considering buying a Nikon D-500 and a Tamron 150- 600, for fauna. I have followed the focus and color improvements of the K3-III that colleagues from the Pentaxeros.com forum tell me, who are testing it and I have stopped short in my desire for another camera.
I have taken good photographs of fauna, with the cameras I have, so after reading JerryLeejr's comment, you ask yourself that, if I can't do it with what I have, maybe I should dedicate myself to collecting stamps
It is good for the brand, to improve the cameras and lenses and to offer its fans and new customers substantial improvements over what they have, but I do not live from photography is just a hobby.
Better to wait for the ones I have to die and then I will contemplate the acquisition of another camera.
jerryleejr, I hope your health problems will be fixed soon.
Greetings