I miss having a good old Guild Hall for my guild that we can expand with different upgrades like vendors. While I’m sure Guild Halls availability probably have been in the planning for a while, I just did think of a nice addition to this:
With influence you can buy map upgrades. In these maps you can do 1v1 duels and similar to Heart of the Mists pvp battles with guildies and even guests of the guilds (allied/befriended guilds and their members). Perhaps even have a possibility to set up a Guild Tournament to organise proper ranked matches within the guild with the members. This will also prove to be a good training ground for the actual sPvP activities in a playfull way in the safe surrounding of guild members.