Is Nintendo making a new Tingle game? Maybe. The teaser site got a small update today with tiny videos of Tingle with walking on a yellow road and holding hands with a female (princess?) silhouette.
Tingle’s last game was Tingle Balloon Fight, a Club Nintendo only remake of Balloon Fight with Tingle and a four player mode. Whatever this is it has a CERO A rating suggesting that Nintendo’s teaser page is linked to a game or some kind of console software.