More commentary on FFG with other people this time??

I'm really confused now! This from Fay's twitter page:

Getting ready to do more commentary for Falling for Grace with ace composer, Andrew Hollander and set decorator, Shannon Finnerty & more...

Never heard of this before. I'm no expert, but I always thought that if commentary was being done for a film, they got everyone together and recorded the commentary. Not do some commentary with the stars of the film, i.e. Gale, then do some more with the composer, set director etc... How is this going to be edited? How will it work? Does anyone know?