Oh yes. I have friends on NA and OCE and it's sad I can never play with them. And levelling alts just for that would be pain, especially with high ping and, in case of NA my times not being so ocompatible for queues, and in case of OCE queues being kinda dead even at prime time. Plu it's a lot of work just to play with people every once in a while.

As for people pointing out language problems...on EU people already speak many different languages and a lot can't speak English (since you know, it's a load of different countries with different languages) so...it would be nothing new.