Update: It’s apparently available now.
The Super Mario Run iOS and Android game is still going strong as it has had a few collaboration events in recent times. Dataminer Oatmealdome has discovered that a brand new collaboration is coming to the mobile platformer, and you guessed it, it is related to the recently released The Super Mario Galaxy Movie. The data was found in the recent Version 3.4.0 release and Nintendo has not officially announced it, but the new event is coming at the end of the month.

The event is live now, they announced that in the patch notes they’d be releasing it today
Thanks, I’ll update the article 😊
The investors who pushed for this game Oasis now own 10% of Kadokawa. From Software mobile games incoming.