You need to make the players move away from the city how ffxi did it. Near the city low level mobs as you go on they become strong which is what they going to do on a update. Making players fight the same mobs within the city area is not so great. I play beta1 and having 100+ players killing the same mob was hard you could not even level up ; ; so no to this idea it's sound great but then you have the problem of players staying at one spot forever to get the same item,gil,crystal and new players can't get anything.