Nintendo has confirmed that they will no longer be providing big content updates to ARMS.
ARMS director Kosuke Yabuki told Eurogamer that Nintendo will continue to support ARMS with bug fix patches and Party Crash events. However, players should no longer expect any new characters or stages.
Here’s Yabuki’s full comment on the matter:
After its launch on 16th June, we released several significant free content updates for ARMS, including five new characters, 12 new ARMS, five new stages, collectible badges, and new modes like Party Crash. More Party Crash events are on the way, and we’ll continue to make balance adjustments and other small changes to improve the gaming experience, but we currently have no plans for bigger updates.