So I've been stalking the WB site for a while since we have mid-July tickets (that I bought ages ago) for their refund policy. For the longest time, they had canceled thru May 31 and the update hadn't changed. Logged on today to read this:
We have decided to temporarily suspend ticket sales for the remainder of 2020 due to the current level of uncertainty regarding when visitor attractions will be able to re-open and the number of visitors that we will be able to welcome at that point. This decision has been made to minimise any further disruption to bookings and to ensure that we can adapt the Tour with reduced visitor numbers if required.
Ouch. They are now refunding and canceling all tickets thru June 30. I had already canceled this trip, so this isn't surprising, but it seems like each day brings a new cancellation/disappointment.