The Magic Librarities

seems like Wotc instead is reducing the languages instead.

With dominaria united there will be nore more Korean, Russian or T-chinese printed:

https://wpn.wizards.com/en/products/dominaria-united-0

Interesting.

I haven't seen any official announcement that they are stopping Theme Boosters in other languages but I haven't seen any for sale for the most recent sets in French or German. Maybe it was not popular enough.

Is Russian just a temporary inclusion during the sanctions?

As a collector and as someone not affected by the loss of support for these languages this is good for me but I wonder if it just wasn't popular enough in those countries.

Portuguese would have been dropped as well if it wasn't for Brazil.