My understanding is that existing servers are not going to be upgraded, because the hardware is completely different, the og being east coast data center, the new 64 machines being housed in las vegas. What I understood was that efforts were underway to figure out how to move unmoveables from server to server - 1. guilds, 2. astral shards, 3. pets, 4. mounts, 5. monster manuals, 6. character names 7. probably something else etc etc
Now as a person who made toons when the servers originally opened in 2006, I have a lot of unique names and I don't wnat to lose them. I have a guild, i have some very rare pets, I have mounts, etc - I don't want to lose any of my stuff to move to a new server - IF they could move me, taking everything intact, i'd be fine with that.
Since they are using a 64 bit server I'm wondering if the tech has a mesh they could use to add a layer of player accounts - similar to what blizzard does for battlenet - allow us to log into the server, to see our account, our account has our unique name - then toons we play are just renamed shortcuts to that account but display the shortcut name -