This morning the International version of the Disney Tsum Tsum Mobile Game was updated to add Steamboat Mickey and Minnie to the Premium Box! They also announced that a Holiday Jigsaw Puzzle Event is coming soon!
Steamboat Mickey and Minnie have Lucky Time until the end of the day (PST) December 4th. They are Limited Tsum Tsums and will only be available during December.
The Jigsaw Puzzle Event will be "coming soon" which for the regular Tsum Tsum game means it could be anytime in the next week or so... so be sure to stay tuned for more details!