Not sure if this has been discussed, but I was recently told of a new arrangement for assembly speakers. I was told that the body of elders can give the reccomendation for any brother to have a part on the assembly. The excuse was to allow everyone the chance to TEACH, How Loving of the GB.
When I was young, only Pioneer elders were giving parts. I once met Larry Grahmn on an assembly part at Dodger Stadium. Now a MS can share the spirit with the faithful. I assume that they are running out of elders that can still walk, have vision and don't depend on Depends.