You'll be happy to hear that we've made it much simpler to participate in the Public Test—you can now log in using your main account. To do so, select Public Test in the Game Instance section of Wargaming Game Center.
The epic "German Battleships: Part 1" event, challenging Asymmetric Battles, spooky Twilight Hunt, and other new features await you! Take a look at the Developer Bulletin, and welcome to the Test! See you on the Public Test Server!