Matthew Everett Community Manager for Star Wars Battlefront posted on Playstation.com today that a Star Wars Battlefront beta will hit PS4 however on Starwars.ea.com the beta will also be on the Xbox One and Origin for PC in early October. He mentions the Beta is a technical test and will feature Walker Assault on Hoth, a 40-player multiplayer battle featuring Rebels and the Empire. Walker Assault will also give everyone the chance to play as Darth Vader and Luke Skywalker. The Beta will also feature a Survival Mission on Tatooine, where the player and a Rebel friend must fight back waves of Imperial forces. Matthew also mentions a third game mode in the beta called Drop Zone but will give more details in the coming weeks of what it entails.
Read more info of what was revealed here