Aham!
Priston Tale 2 will be fully-playable by European residents. For a full list of the countries in which Priston Tale 2 is fully-supported go here.
If you live in a European country outside those listed, you should still be able to play Priston Tale 2 without any problems, though some aspects of the GamerKraft site/service may be restricted.
The Priston Tale 2 game servers WILL be IP-blocked for North American residents in the United States and Canada.