Here's a theory.
Mac said that The Fountain was an attempt to get back to the early
days of the band, Crocodiles and the like, and that got me thinking have the 5
post-reformation studio albums been an attempt to mimic, even copy the 5 classics?
Think About it.
Evergreen is an improved version of the Grey Album
WAYGTDWYL is Ocean Rain. Though not on the same level
Flowers is Porcupine, as Will gets revenge on the previous record and is let lose.
Siberia and HUH both share the same producer and some of those tracks sound very similar IMHO.
Crocodiles and The Fountain both had extensive outside musical help.
Therefore the next solution is a remake of the original '79 singles.