The 2017 Christmas Tsum Tsum collection is releasing in Japan on November 1, 2017.
The collection features a Tsum Tsum Advent Calendar (different from the U.S. release) and a Christmas Wreath set.
It appears the Tsum Tsum Advent Calendar will include micro and mini Tsum Tsums judging from the different size windows on the box. The Tsum Tsum advent calendar retails for 16,200 JPY (~$143).
The new Christmas Wreath Tsum Tsum set includes two micro (Chip and Dale), three mini (Mickey, Donald, and Daisy), and one small Tsum Tsum (Mickey). The set will retail for 5,832 JPY (~$52).