Hello Deborah and thanks so much for bringing such a great enquiry to us here at the Disney Parks Moms Panel.
I feel so fortunate that I've been lucky enough to have enjoyed family trips during the
Holidays at Walt Disney World Resort where for me the
Candlelight Processional is truly the bejewelled star on top of the Christmas tree so to speak during
Epcot International Festival of the Holidays.
As everything is always subject to change at Walt Disney World Resort it's really tricky to predict how far in advance celebrity narrators are announced for the annual Candlelight Processional but looking back at the
Disney Parks Blog (which is the ultimate source for all things Disney related!) I can see that during 2017 there were announcements made in both August and October. However I do have some wonderful news to share in that most of the celebrity narrators for 2018 Candlelight Processional have already been listed via this
link with only a few dates
To Be Confirmed remaining.
It's just as difficult to know the schedule for when the most tinseltastic dates on the calendar for
Mickey's Very Merry Christmas Party will be announced but again looking back on the Disney Parks Blog during 2017 the dates were given in April.
I hope these little bits of information will help your Disney planning!
~ Jane