As far as I know, having only seen one of these (so not a great data population), there aren't any actual commitments as to the quality/standard of service, routes available, etc...
Even if they were revoked, the years of flying on what is now recognized as a pretty awful business mistake by AA certainly outweigh the current negatives.
In the future an acquisition or bankruptcy proceeding may see these go away entirely if their holders don't beat them to the punch.