This is what DIS shows as the schedule change, with the result that most of the usual morning rush will not be covered by the monorail:
Beginning 6/22/14: The monorail will have a different operating schedule than normal as an automation upgrade takes place. An automated monorail will allow for faster switching times, more frequent dispatching of trains, and accurate arrival information. Additional buses and watercraft will be available during this time (guests who have early breakfast reservations can also use watercraft or bus service). This schedule will be in place for a few months, but no specific end date has been set. The schedule will be:
Epcot - 9:00am-11:00pm
Resort monorail - 8:30am-midnight
Express monorail - 9:30am-11:30pm
Source for above:
http://www.wdwinfo.com/transportation/monorail.htm
Tinkerbelle920's rather calm reference to her disappointment with this probably understates what the large majority staying at the MK resorts this summer will think about their experience. This also means everyone arriving from offsite in the early morning for MK will have only the ferry to get across the bay and that is likely to mean there will be huge crowd back-ups at the ticket center.