I guess that the best answer for this question will be this quote:
"D3CL is a new Diablo 3 organization established by Polish Clan League, Angrenost Realm and BNPL. It's goal is to create community based both on polish and international players. We also want to build our own Pvp League in the nearest future if possible, but it's all in Blizzard hands now.
Our roots reach year 1999, which makes us the oldest living organization on battle.net. We want to create an area in the internet, where both old school Diablo players and newcomers will be able to exchange their opinions and experiences on all sorts of D3 aspects, get to know new guides, strategies for each class, tips'n'tricks or simply talk about their hobbies. We want to bring fresh news not only about game itself, but also from a single guild or clan and whole pvp scene.
D3CL staff is highly experienced and ready to roll. Join us in battle!"
Afaik, there are dozens of pcl guys here and there will come ex-ep & ex-pr players too, some of them are already here, like Saesa ( or myself ;p ), who will be moderating Czech/Slovak community here.