"September 2020 is next season as Reidel said, so I don't know why you're so upset about his comment."
The full comment as quoted here was "Beetlejuice is about to be squished. Word on the street last night was that Hugh Jackman will be taking The Music Man to the Winter Garden next season." That implies BEETLEJUICE is going to be "squished" very soon because THE MUSIC MAN wants that theater. If the writer of the comment realizes that THE MUSIC MAN is not due to begin performances till one year and three months from now, he shouldn't have implied that any imminent closing of BEETLEJUICE would have anything to do with THE MUSIC MAN.
If the quote was taken out of context or edited to imply a causal relationship that Riedel didn't actually imply, then I apologize.