Today on the forums Vyvyanne finally announced the date for the upgrade to the new servers:
“We are finally at the point at which we are ready to announce the opening of the new Datacenter with all new hardware! It has been a long road as we purchased and set up new hardware with updated operating systems, transferred all the data from the old worlds to the new and had to correct systems that had trouble with the transition for 32bit to 64 bit processing. But all of that is past us now and we are pleased to announce that on January 11th, 2016 we will come down for a maintenance window at 5am EST and come back up around 3PM in our new home!”
In another post, Vyvyanne ranks the servers in regards to concurrent population size:
“Current Concurrency From Highest to Lowest
It is nice Turbine has finally released the server population relations, especially since transferring players might go to a different server based on their population preference.