The World of Warcraft Classic forum has been updated with a brief post detailing the structure of the EU realms for Classic. There will be a number of PvP, PvE and Roleplaying realms available, but there will be no division based on language. The only exception is that Russian realms will feature their own download client (as they do on retail) due to the use of the Cyrillic alphabet.
For Classic, we’re planning on not splitting up realms by language. This has its advantages and disadvantages, but overall, we think that it’s the best starting point for WoW Classic. An exception will be made for the Russian language, which will have separate realms due to its reliance on the Cyrillic Alphabet. For technical reasons this will also mean Russian is going to have its own separate game client, similar to what happened in The Burning Crusade.
Read the full thread by visiting the World of Warcraft Classic forum.