Jerry, I have the japanese soundtrack still into my HD; P.M. me for it!
I'm happy you are working hard for this, but let me just to suggest to not use v.2.1, as it could seem it will be different from v.2.0... I'll stick with v.2.0 plus something like "audiophile edition", or "extra soundtracks"...
Or, it will be a v.2.1 only IF video will be compressed at higher bitrate than the one used for BD-25... and it could be done, of course!