Coca-Cola rival Pepsi will launch a reduced-calorie cola dubbed "Pepsi Next" next year, Beverage Digest reported Wednesday afternoon. The drink, with 40 calories per 8-ounce serving and 60 calories per 12-ounce serving, has been undergoing testing in limited markets throughout the year, the industry publication said. Due in the spring, the new cola is expected to come in 12 packs as well as 16 ounces, 20 ounces and 2 liters.