Marian write it in the post above: XIII Century: Rusich (I suppose is Rusich=Russia).
If it is go out only now the Russian version, I don't think you will find it in the States at october.
If the official announcement is still not over the Europe site of 1C, we should wait a little longer. It is the same happen with Armed Assault, before the game is go out in Germany and Polish version, two or three months after is go out in the rest of nations already in a upgraded version after the local markets feedback.
Enjoy the basic version and train for the multy ladder when the addon will go out
