I booked the HP package about a month ago for my trip which will be June 14-16.
I spoke with someone in the package department this morning to specifically ask how the June 18th Grand Opening affects our vacation. I was told that I will receive an email when I have finished paying for my vacation in full and that special email will be what I print out and bring with me to the parks (along with my admission ticket) to prove that I am a HP package holder. This email is what will get me into the WWOHP.
I was told that all shops, rides, restaurant, etc will be open to me and all other package holders during my stay. She said they can't promise there won't be technical/mechanical difficulties while we're there (as if any park can ever guarantee that!) since the FJ is brand-spankin' new, and that problems may arise which will shut rides down etc while they are still working the kinks out, BUT it will all be open to me as long as it is up and running.
She said that if I decided I would rather be there for the actual Grand Opening Ceremony on the 18th then I could try to reschedule my vacation package, but that if I didn't care about missing the ceremony she could definitely see the advantage in being there before the grand opening. That advantage: full access to WWOHP with a considerably smaller crowd.
I think basically (and this is only my opinion here) the package holders prior to the 18th will be a sort of technical dress rehearsal/trial run. With the package holders they can run through several "normal" days of operation with a controlled ideal number of guests to make sure everything is up and ready before they get mobbed by the general public with the official grand opening on the 18th.
For the sake of my own vacation, my fingers are crossed tight this lady knew exactly what she was talking about.
I most definitely understand those who are upset though. We very nearly decided not to go with the package when we booked--we weren't quite sure if the "commemorative ticket" and Three Broomsticks breakfast were worth going the package route rather than scouting out better deals on tickets/hotels etc.
But then when we were told package holders would get early access to the park ahead of other resort guests we went with the package. At that time though we thought "early access" would only equal 30 minutes of "private" package holder access (at 8am) ahead of the resort guests(at 8:30am) and then the general public at 9am.
Now it seems though (???) that we will have basically a "private" package holder access for the duration of our vacation. That is a TREMENDOUS difference! I'm very VERY happy right now, but I can say without a doubt had I gone the other non-package route I would be very, very ANGRY instead!