Mega servers are the future, at least in the sense that they allow developers to merge servers without using the term and acting like there is nothing to worry about with the population. Wildstar developer Carbine Studios has revealed that the fledgling MMO will soon see its servers merged similar to DC Universe Online, with one PvE and one PvP server per cluster.
Going the Megaserver route means that we vastly increase server capacity allowing for greater critical mass of our player base, resulting in more people, more groups, more activity and more raids… more of everything that makes WildStar so fun. The Megaservers and their increased player capacity will give fans more options to group up and enjoy WildStar with friends and other players for a long time to come.
To avoid name conflicts, all players will be given a last name.
(Source: Wildstar)
