So I ended up learning Japanese and figured I would play 1.76 to see the progress in my studies, along with seeing the content that was never fantranslated. Compared to 1.71, there are 2 H-scenes and also a slight extension and fleshing out to the Shalban side story. That said, there are clearly gaps that show the content isn't actually complete and probably won't ever be.
Despite the expanded-upon Shalban side story, there are still 3 endings, and if you go through the side story you can see a choice to select a 4th ending that is just permanently greyed out. The lopsided positions of the ending scene crystals also make me feel like at a total of 5 or 6 were planned.
The hole in Popoko Plains that is Chrono Syrup bait still does nothing, and I can't find anything about the yellow orb in the ruins inside Popoko Plains so I assume that's also incomplete.