The Death Star DLC won't be the last expansion for Star Wars Battlefront. EA DICE is planning to release another add-on after the Death Star DLC. It'll be based on the Rogue One movie.
EA DICE confirmed Star Wars Battlefront Rogue One: Scarif for later this year, not 2017. This date is for Season Pass holders and we could see everyone else get it next year.
The company says the DLC "continues the battle with heroes from Rogue One: A Star Wars Story and explores a new planet from the upcoming film." Rogue One arrives on December 16th.
We also know that it will come with a new mode, new maps (Scarif is a beachy planet), Star Cards, weapons, and heroes (Jyn Erso/Director Krennic). And we know that Season Pass holders will get it two weeks before everyone else. That's it, for now.
Once the Star Wars Battlefront Rogue One: Scarif DLC arrives, that's it for this version of Battlefront. Those looking to get their next fix will want to keep their eye on Battlefront 2 which is supposed to arrive sometime next year.