They didn't refer to any miracles yet. Just to the odd remarks by the two cardinals about the 'the big secret' that 'will make everything clear'. Quite odd to mention that several times in front of many state leaders and millions of Belgians/ other people.
Did you get to see the documentary on RTBF (no idea if they broadcasted a French version)? The people they interviewed were quite good, several former (prime) ministers, former employees of cardinal Suenens, the late Prof. Robert Senelle, the secretary of Queen Fabiola, Etienne Davignon, Prof. van der Wijngaert, prince Stéphane Lobkowicz etc. They even interviewed the king's Parisian surgeon- who believes there was a devine intervention during the heart surgery in July 1993, which saved the king's life at the time.