Dunkin' Donuts also has yet to confirm a launch date for its pumpkin spice coffee. In past years, the coffee chain has offered its fall drinks slightly earlier than its competitor, Starbucks.

according to employees at the coffee giant. An August 27 debut would be the earliest Pumpkin Spice Latte launch date for Starbucks. While Starbucks had an early release of the Pumpkin Spice Latte ...