@JoeW4 re the extra seats. They could decide not to sell the balcony, unless and until the show is selling so well that it could bring in extra bucks. That would cut the differential by half (and save some (smallish) costs). As someone who has seen some memorable shows from up there in days gone by, this strikes me as one that might not be well served by the absurdly raked, cramped, and stratospheric level of this beautiful theatre.
@zainmax although we all now know that, barring some fiasco, the show is moving, the article you link, like all the others, does nothing to "confirm" anything.