I think the 17th has always been unlikely b/c it's the day after Easter...not that many celebrate, but enough do that Disney is unlikely to want those poor workers dealing with heck at 7am on after a holiday...
If I was betting, if soft opens for APs are disappointing and early party sales are, too, they'll release
free dining...so I'm expecting mid-May for a drop after party sales open and APs have put their thoughts online for a few days...
It's not just Pandora that's gonna open to bring crowds...Universal will have opened an entire brand new water park and that may bring more folks to Florida this fall - even if they only choose a day for MK, that still fills the parks...