I have been waiting since the fall of 2016 for the K-3II replacement. Even at this point, I'm still not desperate. I'm still willing to wait until fall of next year for it. I have my 2 K-50 bodies & 5 lenses that I try to use daily. I also have a D7200 & a few zoom lenses for when I want to catch a bit more action like BIF, nieces/nephews running around, or just things that can't stay put. I don't need to get a camera just yet. I can still wait around.
Everyone else is making some superb cameras. The future is more than likely going to shift to mirrorless. It's not like 10 years from now DSLR cameras will be non-existant either. They'll probably be around for at least another 20 years, but will probably become a bit more expensive as time goes by.
For those waiting, they have nothing to lose. We'll either get a very amazingly good K-3II replacement from Ricoh or we won't. Even if we don't, all is not lost. With Canon & Nikon entering the mirrorless race, competition will breed some very nice cameras. Panasonic is about to go FF mirrorless too. Even the m43 bodies are churning out some excellent images. I'm quite certain that Ricoh is not going to stay idle either.
If your camera & lenses are currently working fine, then no need to worry. Keep on shooting them & getting better at taking photos. If you need a camera to replace your current camera that has issues or just need a camera hold you off for a bit, there's the excellent & kind of cheap K-70 or you can always get a used body from this forum or on eBay. We'll get something sooner or later whether it comes from Ricoh or we jump ship to another brand that has something that suits us. We really can't lose at all. Good things come to those who wait.
But yeah. Patience also has its limits too. We can only wait for so long & the other camera makers are not helping the cause either. Hahahaha!