here is few suggestion that i heard in IRC and that i think myself are not bad ideas indeed.
Many people has spoken about what to do with the other servers, if we need a new one, perhaps two? many of my suggestions would be: a new server called Time Machine of Utopia that make us revive old ages starting from age 1 to wtv. Also, an other suggestion would be to add more attacks, more players in kd perhaps? a conquest system in which you could in a way start an empire(easier said than done) and leave alliances the way they are..which mean..outside the game. But starting different kind of governments with pros and cons. Taxation, economic policies and have trading or aid outside the kingdom. The imperialistic idea will proly be hard to implement but it would be nice to see kds forced to have a tag representing the kd that conquered them. thus growing the kd's economical strenght,military might depending on the type of gov etc..unless there is a revolt which is something else. lots of it is long term. but if those are there. we are talking!
note: feel free to add other suggestions, develop the ones already stated or find solutions to other problems in the game.