I would love to know too.
We do the last week of June into the 1st week of July - till July 9th.
So we'll be there for the 4th.
I think our AP ticket will help us hop around - MK in the AM - then cooler EPCOT in the afternoon - a splash of Studio's at night.
or
Park -> pool -> Park for a day.
I know it will be hot. Only reason for pants would be for horse back riding.
I know to do PS for lunch (and maybe dinner) to get out of the crowds.
I know to do my HDD reservation 1.5 years in advance.
I know to bring a least 2 bathing suits per person and ask for extra towels at the resort.
I know to bring footpowder to sprinkle in our sneakers.
Events - Wide World of Sports - cheerleading,... conventions
if kids events - Value resorts will be packed
if adult conventions - the S/D pool may close for them - same for
Contemporary & Coronado
Weddings a the GF - from the monorail, you may see one
Other than that - LOTS of people who have kids off from the summer (like us)
visiting WDW.