They should start showing the Mickey's Very Merry Christmas parade in place of the Share a Dream Come True parade once the Mickey's Very Merry Christmas Parties are over. Usually the weekend before Christmas. Just depends when the last party is.
Is this for sure about the Disney Christmas parade? I want to be able to see this parade but I am not really interested in the MVMCP. Since the last party is the 20th, they'll have the Christmas parade on the following days?
They film the first weekend in December. It takes at least two days and many hours to get that two-three hour parade (with tons of commercials) on ABC.