The event is called "Let's go to that island again!" and it commences on Friday. Koholint island-related Spirits will appear, including Link, the Wind Fish and Link's owl companion. The event is due to run for 5 days.
Tom Nook won't be best pleased
Update: And a different bundle for North America
Cease and desist
On a Treehouse livestream? Probably not, no
Some 'mon are missing