Next Merch Drop?

Any Info on when the next merch becomes avialable that has been on sold out status since being added to the store?
Aka the Oppai Shirt, the Kuma hat+shirt, the rumepi fan+towel and the metamorphosis bookmark.
We already got most of the merch during the august merch drops, but the ones listed above are still missing.

Very soon! Keep an eye on Twitter