A datamine of the Xbox Store has seemingly revealed a few details about Overwatch's

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True Achievements (an Xbox Community achievement site that scans the store) has picked up hidden new entries for a Game of the Year Edition - set for release on May 23 (a day before its May 24 first anniversary) - and Anniversary Loot Boxes.According to the current store description , the Game of the Year Edition will be practically identical to the currently available Overwatch Origins Edition, aside from the fact that it offers 10 free loot boxes along with the various other cosmetic bonuses in that version. Anniversary loot boxes will contain over 100 new cosmetic items, and they'll be available until June 5. All Overwatch events so far have lasted three weeks, which suggests that the anniversary event could start as early as next week.No specifics of what will come in Anniversary boxes have been formally revealed but game director Jeff Kaplan has made it fairly clear that Symmetra will finally receive a new legendary skin Recent datamines of Overwatch update files (via Reddit ) suggest we may also see the debut of a new mode that involves teams attempting to destroy an objective for the first time. New voicelines for multiple characters suggest one team moving an object, while the other attempts to destroy it. However, it's by no means certain that this would be a part of the anniversary celebrations, or a placeholder for future updates.Whatever the event turns out to be, the Overwatch team has every reason to celebrate - since its release, the game's amassed 30 million players across three platforms, $1 billion in revenue , and an IGN Game of the Year award

Joe Skrebels is IGN's UK News Editor, and he is doomed to buy more boxes. Follow him on Twitter