Stop copying WoWs WZs and implement real PvP. If you want to copy something, copy guild wars or for world pvp DaoC.
PvP sux in SWTOR, I don't want warsong gulch and Huttball is just a variation of that.
Make pvp mean something guild vs guild. Add guild ships make them part of maps and add 20 or so maps. Of course a ladder system on top of that and it would be a good start.