in europe is already available
To be fair though, the retail version is a neutered version that doesn't come with any of the stretch goals. IE, retail only comes with 4 missions, vs 10 missions and 2 mini expansions (2 additional missions).
I'm sure there will be KS editions to buy on the marketplace here and on ebay once backers start getting theirs. Right now its scheduled for February, keep an eye out around that time.