Boy. I checked MK for the 6th. They don't even have the afternoon parade on the calendar for that Saturday and they've got 9-9 posted for the hours. That is very peculiar.
I would not expect that schedule to remain. The last two years they have been open later at night (11 or 12) and had Wishes and Spectro, and the afternoon parade. In at least one of those years, they even threw a surprise morning emh in.
That particular Saturday of Columbus day weekend is usually busy across the board. Epcot as a park handles crowds best but the food and wine festival in the back section gets crowded Saturday nights. The booths themselves do not handle crowds all that well.