“But never say never. Down the road, we’re in a good position that we could add her songs and integrate her into some of the music we’ve been working on for four years. So that’s the state of Fleetwood Mac Nation.”
More than likely this is what is going to happen. Mick is goad(t)ing
Stevie by saying these things in the press and announcing the four of them will finish up recording a new album. I don't think either FM or Stevie really wants to release a record without all five on it.