I always enjoy these threads, not so much for the initial posts, but more for the responses. We are definitely reaching the point at which camera brands should slow the release of new cameras, even if they don't. The rumor is that Sony is working on the A9 II, but what is it going to feature, 25 fps, 80 megapixels, 6K video? It could very well feature all of those things and still not make a difference to anyone interested in still photography.
It is hard to imagine all of the current players surviving the MILC blood bath that is coming. Sony is probably in best shape as the first (full frame MILC maker), Canon seems to have a pretty coherent plan, and Fuji has Instax money to burn, at least at the moment, but Olympus and Nikon both feel a bit tenuous going forward -- particularly Nikon as they are currently sinking a bunch of money into developing new cameras which aren't selling at the rates they want. Pentax's conservatism actually could help them in a shrinking market.
Certainly now is not the time I would choose to release a raft of new cameras and lenses.
It is pretty clear that Pentax is planning to continue with SLR development rather than MILC, that they are working on updates to their current cameras that will feature some things that stand out from the competition.
In the end, it is about the image, about creating something that you (and your friends) enjoy looking at and to me, Pentax cameras and lenses are very satisfying to use and produce excellent results.