World of Warcraft Servers?

I want to come back to WoW playing on the EU servers (living in the US, don't ask how) as a hunter. Since I hate PvE and love PvP (arena), it kinda sucks because hunters are pretty bad in arena. I've been gone for like 4 months and just wondering is anything changed for hunters in pvp? If not I'll just transfer and have my friend level a priest for me. So my question is: is it worth transferring?