Well... as things currently stand, LackeyCCG's Plugin selector offers semi-dynamic Medium/High Quality buttons. With a little tweaking (possibly with a little client modification by Trevor), it could be possible to introduce a whole new two "quality sizes", so the plugin maintainer could simply edit in the translations into the card images (and have no drawbacks, as it'd allow people to select original images or photoshopped translations instead of leaving them stuck with one or the other) and basically allow Japanese-Medium, Japanese-High, English-Medium, English-High.
...Just speculating. >_>