NE: "Today, we're looking at a big list of all stages not in Splatoon 3, plus which ones we'd like to see added before the game's final update."
"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.
A full (and subjective) Splatoon 3 stages tier list, updated for the latest season.
NE: "Splatoon 3 is home to lots of Badges - we've listed which of the Splatoon 3 Badges are most difficult to earn."