This was teased over a year ago with an image of a character in what appears to be your kind of standard Star Wars run-down city (like Mos Eisley/Espa, Jedha etc.) with Star Destroyers and the flags of the Empire looming.
Since that, pretty much nothing-pretty much all Star Wars game news has rotated around Battlefront II with a little bit of LEGO and the mobile stuff. Nothing shown at E3.
Reportedly, the game-developed by Henning who is best known perhaps for the original Uncharted trilogy-might feature some elements from the abandoned 1313 project, which was going to pretty much be Uncharted meets Star Wars (although set mainly in Coruscant's more seedy lower levels, seen in AOTC)