I remember reading on here that last year they added a discount to the week after Easter only about a month beforehand. Also, the first year they did the 4/3 deal, Easter was blacked out in writing, but on the reservation site (and also by calling) it was not blacked out. So we got the 4/3 deal right during Easter.
This year remains to be seen. I think we've discussed this on other threads, but there is a wide range of availability during Easter this year. All of my resorts I'm checking are wide open and available -- all room categories at every resort (BC, BWI, Poly, WL) show availability. I'm thinking maybe on March 1 when this rumored new discount comes out that we should be sure to plug in Easter weeks and see if by chance they released a deal on some rooms.