I Am Setsuna seems to be receiving a new exclusive update on the Nintendo Switch! The Update will include the Temporal Battle Arena, in which you will be able to take on other parties from players worldwide.
Look for this update to hit your Switch on April 13th.
Here is the Press Release:
Think you have raised the strongest guardians? Upon completion of I Am Setsuna’s story, enter the Temporal Battle Arena from the Last Lands, where you can test the might of your guardians against others that have also completed Setsuna’s pilgrimage in this upcoming party vs party update. Teams that emerge victorious will be rewarded with items belonging to the other team! This Nintendo Switch exclusive update is coming April 13, 2017.