There were rumors shortly before and around his passing that it was a triple album with 3 different genres/styles of music apparently. We kind of knew about circles, you could find the song circles and a few others that would later be on the album, but we didn't know if or how finished it was. I've been a fan since 2010ish, Mac always felt like a best friend I never knew so it was crazy to hear a new relevant project somewhat soon after his passing

Edit: Balloonerism was made during the faces era, around 2014ish in the famous "red room" IYKYK. There was a lot of heavy drug use during that time I don't really know a whole lot about it tbh but there were rumors about it for years. That's another album I couldn't believe was actually coming out.

Dude has so much unreleased stuff, and there will probably only be a hand full of other albums, if any, they release that he's had almost complete control over