I do love the Primoplan and hope that will be one of the next lenses they will re-release. I have two original M42 versions, one standard and one in the mini-body. The rendering is something quite special and the lens is a good performer given its age. The mechanics and coatings are not that amazing, particularly with the K-Mount adapter, which other people have mentioned already, so a native K-Mount version would be nice to have. I regret not having picked up the K-Mount version when it was on sale for €450, but I'm not sure I'd be willing to spend €999 on it...
The same holds for the Trioplan 100. It's a speciality lens, and the bokeh can make or break a photo depending on the circumstances. A smooth bokeh is just a stylistic choice, and not every photo will benefit from it. The FA43 ltd can have a harsh OOF rendering, too, but in the right context the background can look like an impressionist painting by Monet or Renoir.
I hope OPC has retained the characteristic rendering (because what's the point otherwise?), but those photos are too early to tell. The original Trioplan doesn't bubble in every photo and for every OOF highlight, but is a bit selective, e.g. bubbles here:
compared to a more characteristic example of the Trioplan 100 bokeh:
The Pentacon/Meyer Orestor 100mm and 135mm lenses have a very different, much smoother image characteristic, but even other triplets don't bubble as much. So even slight changes in design might reduce the bubbles, and if the bubbling characteristic has been reduced it kinda defeats the purpose of the lens. It's a shame that the sample photos provided by OPC don't show the typical Trioplan-bubbles, and I hope that that's just because they picked unrepresentative photos, rather than the lens behaving differently.