From what ive heard on their website there wont be any ip block. But only 16 to 20 ppl will be able to test the closed beta. And they choose europeans first for CB.But everyone can play the game on OB.
I'm Canadian and I'm in and there are more than 16-20 people playing it =)
No IP block it seems.
And you can get a promo code from FilePlanet.com to activate a CB account, all you need to do is log into FilePlanet and get it. Problem is, you need a European IP for FilePlanet to recognize that you're indeed European to grant you access to the code. Good luck figuring out how to do that =)