My Nintendo just updated with a new physical reward, and members can now pick up the Splatoon 3 Grand Festival Wristband.
Changes, bug fixes and much more.
NE: "With Splatoon 3's content cycle coming to an end, we predict what kinds of new features and improvements Splatoon 4 could bring."
"Nintendo today announced with great joy and thrill that the biggest Splatfest* ever for "Splatoon 3" on Nintendo Switch, is running from 13th to 16th September with a three-day festival of music, ink-splashed competition and community fun for players with a Nintendo Switch Online membership." - Nintendo.
Its been sold out for two days now. Sold out within a day I believe. Hopefully they make more.