According to Nintendo’s Japanese website, the second “offline” DLC pack coming to Tetris 99 later this year will feature a game mode that allows offline play with family and friends.
It’s not clear when this will arrive or if there will be a staggered release between Japan, Europe and North America, but presumably this information is forthcoming sometime after the latest Maximus Cup event.
Reminder that next weekend, Tetris 99 will be celebrating the final Splatfest of Splatoon 2 with a crossover Maximus Cup event. Players who earn 100 points during participation will receive a special in-game Splatoon theme as a reward.