1.6.1 update will be available in first half of october.
This patch is on common test right now on its 4th iteration. Wargaming isn't adding much to the game:
- change of the tank's nation by player’s choice - at any time and as many times as you want;
- after the change of nation, it is necessary to land the crew, equipment, shells, etc. (to be saved);
- on the test, you can change the nation of T-34-85 Rudy, which will be credited to all players;
- new styles - 11 pieces, 1 for each nation;
- and some changes in ranked battles.
As you can see, there are no new tanks or significant updates.