FOR ANYONE INTERESTED:
I have created an in-game community/group called Arathi RP Community (ARPC for short), should be joinable to anyone on any server/realm, but it is Alliance Only. I just cant see any races of the horde being part. If you want to argue that fact I am willing to debate, but for now this is an Alliance only group. I set this up so that those of us who want to RP in Hallowfall can communicate and organize ourselves accordingly.
Edit: There is another arathi group but when I joined and read the log it dosent look like anyone has been there since mid december