Haha apparently there's a harp in the second one, Jordan copied it into Throne, too. But I can't hear it. I do hear a bit more experimentation in the guitars. Personally not pleased it's on the album.
Sorry, commenting way too much. For the record, they want to "get" weirder on the next album, if you believe Mr. Sykes.
No idea, but the rumours and his on stage talk at Glastonbury shortly after suggest something major went down.