As awesome as that would be, most servers had their own server community and their own habits and traditions. But, I wouldn't hold my breath to get all of our servers back. I am sure we lost a lot of folks in the intervening years so we are going to want to put as many folks together as we can, or all this talk of Incarnates isn't going to amount to much.
Still, I guess I can see the rationale of calling out the Euro servers eperately, but similar things could be argued for many of the servers.