I received one last night. Not sure which reservations they are talking about, however- I have dining/events booked for July 20-24 (no hotel), and an entire trip for 4 booked for August 24-30 at Swan/with tickets/dining/events. I also have an AP for both trips, but it has not been activated yet.
It didn't reference any dates.
I'm assuming the July trip will not happen now, due to the conference probably being canceled, but the August trip was a family trip, and I'm a bit anxious about how stressful this whole thing will be. We've decided to hang on for a bit to see what we're going to do, and how they are going to deal with our tickets, and rebooking, which doesn't seem very clear.