Actually I'd disagree. 90% of the time EMH days are the same, week after week. Changes to the schedule are fairly rare and even when they do change it, it's only one day swapping with another, not a complete overhaul.
The standard schedule is as follows:
Monday - Epcot (morning)
Tuesday - MGM Studios (morning), Animal Kingdom (evening)
Wednesday - Magic Kingdom (evening)
Thursday - Epcot (evening)
Friday - Magic Kingdom (morning)
Saturday - Animal Kingdom (morning)
Sunday - MGM Studios (evening)
Much like park hours, you can't guarantee anything until they are officially announced, but I'd bet that you won't go too far wrong with that list.