Dave mentions Stevie's "forthcoming album" in new Billboard article

[louielouie2000]

^Who knows, perhaps these rumblings of the Mac touring this summer are true... and it's to back a new album. We do know that Stevie and Lindsey have both insisted on an outside producer if another album were to be made. That's where Dave fits in the puzzle for sure. I don't know how likely it would be that a Mac album is secretly being recorded right now, though. However, I do know that Hell would likely freeze over before Lindsey would appear on a Stevie solo album... so we can cross that idea off the list!

What I'm guessing might be happening is Stevie is talking all this forward movement from her new solo project, and is attempting to see if it can be transferred to making another Mac album happen as well. She very likely has songs left over from her new solo project that she feels would be good Mac tunes. We also know for a fact she's feeling more creatively inspired than she has in 3 decades. We all recognize how unhappy she was with Say You Will, and it's safe to say she won't want Fleetwood Mac's legacy to end with that album. Perhaps she's simply laying the groundwork for a Mac album while she's inspired to do so. Maybe she wants to show Lindsey some of her songs, and see if he could have a rapport with Dave in a producer capacity?