I've long thought it would be a no-brainer to just hand H&V to Al to sing; he has always sounded great on that one.
I've always thought of H&V as one of the songs Brian had sung great on, but I would be thrilled to hear Al sing it again.
Maybe Brian could still sing the "Cantina" section.
Brian at times struggles with the really "wordy" songs, which like HJ says, is likely why Busy Doin Nothin was dropped after the first leg of the NPP Tour.
Al used to do a great job with H&V with The Beach Boys, so it seems logical to have him take that one again. For that matter, I'm not sure why Al handed WIBN over to Matt.