This may help a little.
I went over to IOA to try and get my son a wand for his bday this month. Got there about 330ish, and took less then 5 minutes to get thrru the turnstyles. Not sure if the rain scared people away, they got tired or the die hards were already in the park.
For HP there was a 6 HOUR wait at that point, just to get to the Island(HP).
IMHO IOA and US an learn a lot from Disney with crowd control and telling people what is going on. I walked all the way up to where LC starts after Seuss Landing and was promptly stopped by a rope and a small army of employess and security guards.(Didnt know about the line at that point)Apparently, the line started at the end of the lake as you come under the tunnel, and continued the long way around the lake.And it wasnt moving as far as I could tell.There was no signs, warnings, cast members or even a bird saying come here.Found it by accident.Needless to say Im going back during the week to try again. Id say after this weekend, and this is my swag, a lot of the die hards will have had there fill, and things should come somewhere near normal for this time of year. WWHOP may be busier then some of the other lands, but no where near as bad as this weekend.As I was leaving, I overheard a security guard telling someone that if they want to make sure they get in tom, then to get there at like 6 in the morn.