Not just guilds, a kingdom addtion to the game would be great, obviously more expensive to form, but more fun than a guild.

With Features like:

-Overthrowing the king
by like:
Duels, assasination, getting people in the kingdom to conspire togther to overthrow the king, etc.

- P V P
so you can expland your kindom, your randomly generated flag that you first had would be on the top right corner of the kindom you conquered. It could be for lulz though.
(More fun with interactive pvp)

Etc.

Ideas? Concerns? Falafel? Comment Below!