What truly is a head scratcher to me, are people on this board (in this thread and others), who can't imagine, or actually fathom Dave Stewart co-producing - maybe two or three - Fleetwood Mac tracks. Rob Cavello & John Shanks co-produced tracks on SYW - their involvement didn't make the songs any less Fleetwood Mac-y
Mitchell Froom co-produced "Sad Angel" & Miss Fantasy" on "Extended Play", and they sure as hell sounded just like Mac songs! Maybe fans need a reminder that Fleetwood Mac (and Lindsey) have a long history of bringing in co-producers (Richard Dashut, Ken Caillat, Keith Olsen, Elliot Scheiner, etc.) and that the FM world & sound did not come to an end.
And it was Dave Stewart, out of ALL of Stevie's solo producers, that brought Stevie back to her classic & most Mac-y sounding solo record. "Soldiers Angel" and "Annabel Lee" especially.
And, yes, it should go without saying, that Stevie is able to branch out and record songs like "Italian Summer", "Everybody Loves You" & "Wide Sargasso Sea" solo, but within FM, I have no doubt they will be sticking to the what works within the confines of what the band is recording.