Yup got mine back today too, cheeky beggars
Was great fun last night, think thats the first time i've started the game with the intention of ramming, and with three of us doing it it was awesome!
Also found the 1.39 patch notes on the official forums:
New japanese tree: Bonsai added to all maps.
New japanese planes: More tactical possibilities thanks to the new aircraft types Pikachu, Charizard and Feraligatr!
New German planes: New Swabian planes added to the German tech tree. The Reich's flying saucers with their historically accurate thermolaser cannons will add more tactical depth to the game. Still in development as the developers of Iron Sky don't want to release the historical data on them. Only available for premium accounts.
New Italian aircraft: The Fiat G. 500 might look like a Fiat 500 with wings whose co-driver is shooting aircraft with a mobster gun, but actually is a Fiat 500 with wings whose co-driver is shooting aircraft with a mobster gun.
New maps: The highly anticipated Lemminggrad is 50 kilometers long but only one kilometer broad. Perfect for head-on and kamikaze tactics.
New battle type: The Battle Royale mode is activated as Soon™ as somebody is teamkilled or the word "Siemka" appears in the chat. Teams are dissolved on an instant, last man standing wins.