The news was Tweeted from the Battlefield Twitter account. As we learned recently, Battlefield Premium members will get access to the trailer first, and those that watch it will get some really cool exclusive Battlefield 4 dog tags for doing so.
Those that purchased the most recent Medal of Honor offering will be among the first to gain access to the Battlefield 4 beta, which is expected later this year. DICE says that there will be additional ways to gain access to the beta, so stay tuned for additional updates.