Hi! Small bit of speculation on my part--A few years ago Universal dismantled the 1925 "Phantom of the Opera" set to move in "the Secret Life of Pets" attraction. This seemed weird considering we're almost at the century mark for that set.
Now that we know that there's a new Universal Monsters attraction, could they possibly be reassembling and refurbishing the original Phantom set in Orlando? Considering that it was used in extensively in both Phantoms (and a small bit in Dracula, I believe), it would make sense to have it in area devoted to the Universal Monsters.
I , for one, would love to see this happen!