Completed 2 more frames (mostly), and finished the sketching and line art for frame 54. The background to frame 52 is still rendering in the background (20 hours later), but I dropped in a temporary screenshot of the rendering as it stands now for the preview (you see the pixelation in the preview).
While I haven't scripted/storyboarded the added frames I want to put at the end, but these should add 4-5 frames. With this in mind, then we are currently at the 69% mark (heh heh heh).