I think there was little mention of the album because he probably has to re-align with the label for what they want to do post-covid. It's also very possible that reprise/warners or whoever he was initially with, voided their contract or deal due to covid delays. If that happened, he would have to shop around for another label.
If he's still on the hook to deliver that album, he probably can't start taking tracks off of it for a potential Buckingham McVie project if the album has already been approved by the label as is.
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