"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
AirPods and AirPower: Everything We Know
Redesigned and Expanded Third Street Promenade Apple Store Opens in Santa Monica, CA
Apple's old Third Street Promenade location was one of the early Apple Stores and was an extremely popular location that was almost always crowded to capacity. The new store should allow considerably more foot traffic.
Apple proposed the new store to the Santa Monica planning commission more than a year ago, with the new building gaining approval without so much as a discussion.