Before you ask "Will our stuff and bases be gone?!", read this.
We are currently waiting for Bukkit to release their 1.7.2 build so we can update our server, as soon as that happens (most likely in the next few days) we will be starting with a new map.
What we will be doing is (upon request) transfer faction bases to the new map, that includes any items that are stored inside of it.
You will keep your money and enderchest contents as well.
How this will most likely work is, when the new map is created, we will give the players a certain time period to request one of the staff members to move your faction base, we will then need your Faction name, and any other information we will possibly ask for. Until then, do not make any forum posts about it, and don't ask staff members about it until the new map is actually created. Just be patient!