i agree, id find it with npcs more fun and efficent. you could change it in a shorter period of time, have to constantly going to its not so crowded and laggy, and maybe inspire players to make plays up that can be turned into movies if staff likes said play alot.
plus if you want a more player involved thing id sugest a war thing, without guilds, made so if more than 15 players join then the group is split into 3 teams, and a big multiroomed arena where the group fights and the group with the most enemy pks by the end of the time limit win. kinda like a war version of ctf, with 3 teams, and no guilds, it would be fun, especially if there was a actual profitable reward for winning.
or you could make it so the rewards for ctf was raised so it would be actually efficent and fun to make money via ctf.
making these iniatives and rewards would mean more players would participate in war zone and ctf, and would make it actually fun to battle and ctf, without any guild stuff being attached to it so no guild could monopolize the war arena.
id suggest something like boat racing or horse racing, but i cant see how to get it to work seeing as someone could memorize any obstacle course sort of track, and if it was one of those tap button to go faster systems someone could just mod their ipod or pc to do it superhumanly fast.