Lot's of good responses here.
Buy Pentax if you can find what you need now. It would seem many of the loudest detractors bought into Pentax expecting them to become something else, and then endlessly harangue the forum with their disappointment.
My advice pay attention to this page. And watch the interview.
CP+ 2018 Pentax Interview - CP+ 2018 | PentaxForums.com
Take what the man says verbatim. Ignore the nay sayers and speculators on the forum. This man may not be the most expansive or eloquent, but he lays out the official Pentax position accurately and precisely, and with no hype or rah, rah.
And honestly, what he says makes me pretty happy. It says, the things Pentax doesn't do now like mirrorless and 4k video, they have nothing in the works, with the 4k mirrorless depending on sensor capable of doing it.
It says they are working on some stuff, but you can see, it's a slow process.
The K-1ii has an improved AF system, but they aren't trying to make an action camera.
People like myself (K-1 and K-3 ) who are happy with their gear are generally happy because it's value priced performance option. We don't actually expect Pentax to come out with cutting edge high tech gear. We expect good solid "good at what it does" gear.
I've used Pentax forever, in part because forever Pentax has made good solid gear that takes pictures of the quality I need.
Other people need more than I do. Make sure you aren't one of them before you buy into Pentax.
You only need to ask one question.
Do Pentax cameras do what I need a camera do. If the answer is yes, welcome to the club. If not, please move on, we have way too many who want Pentax to be more than what they are. Their constant disappointment with Pentax being unwilling to change it's stripes is depressing.
IMHO that guy in the video is Pentax... love it or leave it.
PS My wife and I had a brief foray into the craft show market. We went to shows where there were 5 or 6 other photographers shooting Nikon and Canon there and we outsold all of them at one show by a factor of about 10:1. Maybe we didn't match them in every category, but in the categories Pentax is strong in we were able to make up for not having all the bells and whistles of the the other companies. You don't get everything in Pentax, but for an outdoor wilderness/wildlife shooter, they have more than enough.