The announcement comes by way of the fine print of this landing page for the Gears of War: Ultimate Edition. People who buy that upcoming Xbox One bundle, due in August, can get "early access" to the Gears of War 4 beta if they log in to Xbox Live and play the Ultimate Edition by March 1, 2016.
There is no word yet regarding what the Gears of War 4 beta will entail. The game itself was announced less than a month ago during E3. It is currently scheduled to launch around the holiday season in 2016.
For a closer look at Gears of War 4, check out GameSpot's image gallery.
Gears of War: Ultimate Edition, a remastered version of the 2006 Xbox 360 game, launches on August 25. Microsoft will also release a special $350 Xbox One bundle that day that comes with the game. In addition, the Gears of War: Ultimate Edition is coming to PC, but Microsoft has not announced a release date.