WOTC just announced today the end of the pre-release. Well, not in actuality but starting with Brother's War, stores will be able to sell everything Brother's War related on the first day of pre-release week. That means not only booster boxes and pre-release kits but single packs and even single cards. However, single cards from the set will not be legal for tournament play until the actual release date. Print Brothers' War products will also be available a week before the set goes live in the Arena app.