I have the Japanese blu ray of Landscape in the Mist, which looks awesome. I'm sure rights issues are at play here, but also, because the films are quite old now for the most part, I wouldn't be surprised to find many of them needed considerable restoration––especially something like The Travelling Players. It seems that whether or not there is money for a restoration is a big factor in whether a blu ray release gets done. It's maybe a hint that the elements might need to be restored that in Japan they didn't release The Travelling Players on blu ray, since they did release Landscape in the Mist, Voyage to Cythera, Eternity and a Day, The Dust of Time, and I think The Weeping Meadow. There are Japanese DVD boxsets, and one has The Traveling Players, Days of 36, and The Hunters. I wouldn't be surprised if there weren't the elements available to put the older films on blu-ray.
On the other hand, maybe Criterion is worried there isn't the interest in its major markets. Angelopoulos has been little seen in the U.S. I have some fantastic blu-rays of later Raoul Ruiz films; Time Regained, Three Lives and Only One Death, and Geneologies of a Crime––all of which were put on blu ray in France. I think of Ruiz as a filmmaker with comparable international recognition to Angelopoulos, and kind of a peer of his, since they worked in similar ways in the same eras. The blu rays look lovely. But only one of them got released in the U.S.––Time Regained, which did have a fairly high-profile art-house run in the U.S. when if first came out. So did Three Lives, but if I had to pick one to get a blu ray, I supposed Time Regained was the higher profile, more recognizable and more promotable one. I recall Ulysses' Gaze and Eternity and a Day getting U.S. arthouse theatrical runs, but I think they'd still be hard to promote in the U.S. nowadays. My vague feeling is that these artistic international filmmakers who were hot stuff in the 1990s haven't been quite so unappreciated since their debuts as they are now. But maybe it is a question of rights and available elements? The exceptional Edward Yang pictures from that period––Mahjong and A Confucian Confusion––are impossible to see, as well.