as we all know all there really is in a guild hall is one alchemy machine and an exit out to haven... besides the fact that only guildies can go in their should be atleast some kind of arena type thing or more too it. i was thinking about like having a personal arena in it. like you can vs guildies in it to practice. or atleast have something to look at while in there cuz as we all no nothing really happens in there...
I direct you to a delicious thread with all this and more:
http://forums.spiralknights.com/en/node/40011