I was just in the Disney employee site and was checking the July hours and see that MK EMH has changed for most of July now. Not sure if it's on the public site, but should be. I had checked the site last week, now it shows there were changes on Monday the 23rd. It is crazy. There are 2 MK EMH evenings each week, the mornings have changed and I haven't sat down to study it further, but it looks like instead of wed. AM at MK, it's now Mon. PM at MK and also Friday PM at MK. So for July there are 4 mornings and 5 evening EMH. Guess attendance is going to be high.
Mind you this is not unusual for Disney to start adjusting their EMH. During my January trip, the times and days changed one week before my trip and I had to rearrange every evening PS to put me in the right park at the right time. During my May trip I was ready, and luckily there were only slight changes due to May 5. I warn anyone not to get too comfortable with your PS plans and to check often.
I was reading a thread of someone going in September (me too) and saying they can't wait for the hours (even though August hours havn't been released yet). I no longer jump on the phone anymore until about a month before leaving (except character meals or big group events). I got burned in January in my comfort zone and check constantly now. Also watching the boards helps too.
And lucky for me, I plan to skip the July evening EMH because the May ones were packed, so July can only be worse. I will try them again in September when the crowd level drops.