Nintendo announced on the official Japanese Twitter account of Xenoblade Chronicles 2 that the Switch RPG will get its Ver. 1.3.1 update tomorrow, March 30, 2018.
— ゼノブレイド２ (@XenobladeJP) March 29, 2018
The update will add its second batch of quests for the Expansion Pass. We can expect more info when the update goes live.
Xenoblade Chronicles 2 is available on the Nintendo Switch.