I actually looked into upscaling the alternate opening titles and, due to the way that the opening titles fade in and out along with the limited quality of the available sources for the international opening, it wouldn't work too well.

Update: I now have the French, Spanish, and Japanese dubs along with French, Spanish, and English subtitles. The audio I have for the Spanish version isn't the greatest of quality, though. I'm doing what I can to try and clean it up as much as possible in hopes of being able to use it.

I have the Italian dub and subtitles but the time it would take to sync them with the BD video doesn't seem to be very worthwhile.