It wouldn't be unlike +Fellay to have signed something and not make it public for several months. Remember when he sent his AFD to Rome on April Fifteenth, 2012, but didn't make it announced to everyone until a year later, and that was after exchanging letters with the "other three" bishops within a few days of 4-15-12, the content of which made no reference to the fact that the AFD had been sent to Rome.
So, if this is true, then who's going to own the SSPX real estate? The local bishops?