@drngr - Sometimes the animators brag about the stuff they sneak in.
I'll definitely take a look into building an English DVD from this though. The quality seems more like an upscaling so I don't see a reason to go nuts with it.
I was leaning towards converting it to widescreen and mixing with the DVD, but if there's a single frame I don't know about, we'd miss out.
Things seem unclear what the full slate of changes are (besides the 2 or 3 we know of), it might make sense to leave the video largely untouched (just fixing opening and closing titles/credits).