Am I right in my interpretation that they will still rely on a single AOA sensor?
It would seem logical at first blush that the only sane fix here for such a critical sensor is to add two more AOA sensors and use a voting system (or other way to sanity-check the data) as per the 747's triple INS setup as RatherBeFlying mentioned above?
It seems that any other solution which still relies on one AOA sensor is likely to simply end up a poor-quality patch job, assuming no other sensor input is available that can be relied upon should the sole AOA sensor go faulty.
/Alex - not qualified to talk on this matter at all, so take my post with the bucket of salt it deserves...