I was called on this past Monday. It wasn't a robo call. I spoke to a young man named Ross who explained that they expect MK to likely reach capacity from 3/28-3/31. Our FP+ are in the evening so maybe that is why I received the call. Ross actually suggested that we consider changing our plans due to the expected crowds. He recommended that if we didn't change our plans we should arrive early morning or in the evening.
Since we won't likely arrive at the MK until 7PM or so, Ross thought we should be okay to keep things as they are. We never got on to discussing how I would change plans at this late date. BTW, I have never received any random calls like this previously.
And to respond to one of the previous posts, we are DVC staying at Beach Club Villas and we have gone to Disney each of the last 8 years the week after Easter.