From what I have seen in the available screenshots, it looks like they did, by slight changes either to the "camera" angle, skirt length or character poses in redrawn CGs. And yeah, they were really awkward at times.
Also, it looks that gameplay system has been revamped a bit. It eliminates pixel hunting by option to highlight all hotspots in the scene, and apparently paths in flowchart are color-coded for routes. Also, there are two(?) more jewels than in the old version.