The game is available worldwide already. Started appearing in stores Tuesday the 19th. It's possible its sold out at the distributor level, but retailers can definitely order copies from their distributor if none are in stock.
Impressions Game Distribution Services
I was just wondering if/when this would be commercially available in Europe. I have tried three different online stores (who carry BattleCON, Millennium Blades, etc) and none of them have it up for preorder or even know when to expect it.