Daybreak Game Studio wants to put players in control of the game they are playing. With that in mind, the EverQuest II team is introducing something called "time-locked progression servers" in both PvE and PvP flavors. These will be available to All Access members only.
What does this mean?
Essentially, servers are "locked" to a particular point in time, to a particular expansion or content update. More expansion content can be added over time, though whether or not that will happen will remain in the hands of the server community.
The first two server polls, one each PvE and PvP, will launch today and run through June 23rd.
Read the post and the short FAQ on the EverQuest II site.