Bit early to call for tons of changes when 10% or so of the player base is at max level. We got 2 of 15 players at max level in our guild.
Also when did world pvp become about having the same number on each side fighting one another ? That would be a warzone. Usually it starts out with a bigger number ganking a smaller number of player who then calls for help from guildies or general chat etc. This does not happen yet because after less than a month of the game being out very few are at max level.