We are currently printing new games of Terraforming Mars, and they are planned to be released in February. We ourselves only sell the game at fairs we attend, so if you want a copy, keep your eyes open for news from
Stronghold Games if you want an English copy.
Schwerkraft if you want a German copy.
Rebel Games if you want a Polish copy.
The first expansion for Terraforming Mars is planned to be released in mid 2017.