At this point, I'm genuinely curious as to what Stevie's reservations are.
I would understand completely if her parents were still alive, and she wanted to spend their remaining time together; but her parents have passed away.
I would get if she didn't want to be the lone female in the studio, being steamrolled by Lindsey. Because let's be honest; John just doesn't give a sh*t and Mick seems to default to the strongest personality; in this case, Lindsey. But Christine is back now, and we all know damned well that Christine has no issues calling a spade a spade.
If she doesn't want Lindsey as a producer, he's already proven he is okay giving up that mantle because Extended Play was an outside job.
If she wanted to do a solo tour, she'd be doing one right now, or would have dates announced for autumn.
If she wanted to work on another solo album, we would have heard about that through her camp, or Dave Stewart's.
For the life of me, I can't figure out what her end game is here.
