Phantom4ever said: "It is worth noting that 50% of Phantom's November seats would have been available any year, pandemic or not, this far in advance."
Pre-pandemic, producers could generally guage their viability based on these advanced sales. If a show typically is less than half-sold three months out, but is 80% or more by performance date, these numbers would not be a concern. Most tourists usual wait until they are in the city before buying their tickets (unless it's a *hot* show like Hamilton). However, we are still in a pandemic. It's still not clear if there is any danger for some of these shows. Just a week ago, Wicked had very good availability. Now, the next two weeks have limited availability. But it opens up again in October.
As Hogan said, we'll probably need a month or so of performances (for each show) to start to see the sustainability and true nature of the sales of these shows. The producers are behaving as if it's business as usual. Discounts are now being released, slowly, and that might have some impact as well. This is really a wait-and-see game now.