I'm with Skyzer on this one.
iEra has pretty much become the Frakenstein's monster of this entire franchise and Zone is pretty much gone at this point. iOS Delteria is a myth and Ol' West is, IDK even know WTF it is.
PC Graal died in the last couple months, honestly was kinda sad to see it go. IMO a lot of the PC Servers had a lot going for them but they never really gained any momentum.
So yeah. You know a franchise is doing well when just 1 of the 4 or 5 servers is doing ok.