Holy shit! Rochefort 12 is a rare brew indeed! As for the original question posed by the OP, the ratings will probably go down a bit. But since beer reviews are 100% subjective, I don't know that it will really matter. As someone pointed out earlier, the ones that have been sitting around the U.S. for a few months may have been stored at temps that were not ideal, so that may play a part. I have some that I picked up at the Abbey and some that I got on 12-12-12 at Total Wine, so I'll be sure to make note of any differences.