The biggest question people anticipating Battlefront have been asking got its answer today. There will be a beta for Battlefront, and it's coming in early October.
In the beta, players will be able to try out Walker Assault on Hoth (including playable Skywalker and Vader) and the cooperative Survival mode on Tatooine, both of which have had gameplay videos released already. In addition to these, players will also get to play a new mode called Drop Zone. Little is known about Drop Zone so far, but EA promises more information about both this mode and the beta itself between now and its release.
Also, EA has announced the Battlefront Companion, which apparently will be available at StarWarsBattlefront.com during the beta. This companion allows you to edit classes, look at stats, etc., as well as offering a "strategic card game" called Base Commander, which will give you in-game credits to spend on things like weapons and other things.
No specifics on whether or not the beta is open or closed as of yet, but stay tuned here for more details as they're released.