"He is no fool who gives what he cannot keep, to gain what he cannot lose."
You're right, I had forgotten about this.
The "Marble" Kickstarter pledge level ($175) included any foreign-language version of the game. I would assume that this would also include the foreign-language version of the Geek expansion, but I am not sure. I suspect that this is still a promo, but maybe it is being offered more widely than just to Kickstarter backers, just as the I.V. edition promo cards are offered here in the Geek store.