First things first, this is in no way a confirmed date. It is simply a date listed from Gamestop. Whether or not this is based off of something they have heard or is simply a guesstimate is unknown.
A Gamestop listing for “Legend of Zelda” popped up with a November 1st release date. Usually the 1st and 31st are used as place holder dates on games, but occasionally they are shipping dates.
Again, this is in no way an confirmed date.