Based on the interview with Mike Campbell published today it's now pretty certain we're not going to get a new Fleetwood Mac album with this line-up. By the time Stevie Nicks finishes her solo tour starting next year (slated by Mike to last 18 months) Christine McVie and other members of the band will be closing in on 80.
I think this is going to end up an interesting but ultimately irrelevant footnote in Neil's career. A nice little earner and fun for him I'm sure. But looks like this will be the only incarnation of Fleetwood Mac not to record any music. Even the short-lived Rick Vito/Billy Burnette version of the band in the late 80s managed to record an album. The most we can hope for I guess is a DVD from the tour.