I love it how most threads that comment on the need of a PvE only server use the argument "Well PvPer's are getting their own mode/server" and the one that makes me laugh the most "Once Arena drops all the PvPer's will be there"
Let me start by saying, I'm pretty much calling it that Arena gets used more as a PvP training area. (mainly speculation but unless the loot is "worth" more the risk, reward equation doesn't add up)
Let me finally take great pleasure in bursting that last bubble of yours, I personally will not be playing Arena and will continue to PvP in "Main Game". I am looking forward to it more and more as all it means is that the sea's are full of easy targets who don't know how to PvP.
Honestly if you were one of those people asking for a PvE only server I highly suggest you try out the Arena if only to "get gud"