Force Awakens Content
I know there might be problems with Disney, but I think Force Awakens content would be pretty cool for BattleCry. This could range from Heroes and Villains, weapons, maps, maybe game modes. Doesn't have to come out during launch.
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They could have a Rey character, who could passively repair vehicles/ships, capture CP's faster, take out tanks and infantry with
herLuke's light-sabre and has all the abilities of every other class.
Or they could have a Finn Class for the Empire whose weapons do no damage to the rebel team, and who cannot be kicked for teamkilling.