I would like to suggest housing such as the way it’s done in Aion.
It would be very cool for each player to have a house of their own, with a chest for storage and a closet for armor and maybe one for weapons.
Perhaps if guild halls are implemented then each guild member could have a house of their own INSIDE the guild land area?
I had always wished in GW1 that each of the guildies could have a little house there all their own. Just seems like a great idea.
I also play Aion and have a house there with a waterfall in the backyard and can customize the trees and flowers in my yard. You can also add statues of your accomplishments.
I think this would allow players to have a truly fun and customized little area of the game thats all their own.