The idea is nice but what guilds would be there to rival? People that play now don't want guild rivalry, world pvp, premades or anything that is in the least challenging. They want to go to minis in overgeared toons stomp the hapless new player who decides to venture in, then call him bad as he is pad camped for 20minutes or until he leaves and afterwards crow how great that mini went "o man I topped kills I am so pro"