Here is a summary of the new elements added:

New UI and audio elements have been added to let the player know when damage is dealt to an enemy that has a damage reduction effect applied. Instant Action is playable on Geonosis, Kashyyyk, Kamino, Naboo and Felucia.

CO-OP is playable on Geonosis, Kashyyyk, Kamino, Naboo and Felucia. 'Star Wars Battlefront 2' is available on PS4, Xbox One and PC. It's playable across Co-Op and Instant Action. 'Star Wars Battlefront 2' update 1.38 brings the Felucia map to the game.