Now you can yell at people for not fighting at the flag in all kinds of different languages: Blizzard's EU staff have announced that they're breaking out the first cross-language battlegroups. Actually, that's not quite true -- players who speak different languages will only be playing as opponents (so the Horde you're fighting may speak a different language, but your allies will still understand you). But it is good news for some EU players who've been suffering long queue times. The English language battlegroup Nightfall will be combining with the Spanish language Crueldad (to form Cruelty/Crueldad), and the French battlegroup Némésis will be battling Germans in Hinterhalt to make up Embuscade/Hinterhalt.
Arena ladders on all of the realms will be combining as well (but of course even there, opponents will still be from different languages, so you'll never have to worry about crossing translation lines). The change is in effect right now -- have any of you been playing on Cruelty or Embuscade and seen faster queues yet?