I think that a monthly quest system would be a great idea... The idea is that a magical kingdom (built by me and a few others) would be made so that when people go inside their gear would be replaced with iron gear and food.. all the role-players would go along but in this world they would go to various villagers, caves, homes, and cities to find quests that give them gold nuggets... they would be able to get horses but no diamond armor would be available.. However, there would be a witch in the swamp (...of doom) who enchants your gear for various herbs... all the players would be able to choose the kingdom to pledge their allegiance to.. each kingdom would have different quest and the ability to lay siege in certain cities in quests and have skirmishes in the vast forests and geographical features in between the kingdoms.

I think this is a good idea if you do too, then LIKE it! :D