It’s been not even two years since John Cale came out with his highly-praised album “Merci” after a ten-year break. And now, on June 14 he will already be issuing a new album with the playful title “POPtical Illusion.” The thought does come to mind that this could be leftover material from the last record brought by this multi-instrumentalist and Velvet Underground co-founder. “Merci” could easily have marked the end of an impressive musical career. On this atmospheric, ambient sound journey, Cale brought together younger colleagues such as Weyes Blood, Laurel Halo and the Fat White Family, pa…